| 1 | # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # |
| 2 | # This is GNU Go, a Go program. Contact gnugo@gnu.org, or see # |
| 3 | # http://www.gnu.org/software/gnugo/ for more information. # |
| 4 | # # |
| 5 | # Copyright 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, # |
| 6 | # 2008 and 2009 by the Free Software Foundation. # |
| 7 | # # |
| 8 | # This program is free software; you can redistribute it and/or # |
| 9 | # modify it under the terms of the GNU General Public License # |
| 10 | # as published by the Free Software Foundation - version 3, # |
| 11 | # or (at your option) any later version. # |
| 12 | # # |
| 13 | # This program is distributed in the hope that it will be # |
| 14 | # useful, but WITHOUT ANY WARRANTY; without even the implied # |
| 15 | # warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR # |
| 16 | # PURPOSE. See the GNU General Public License in file COPYING # |
| 17 | # for more details. # |
| 18 | # # |
| 19 | # You should have received a copy of the GNU General Public # |
| 20 | # License along with this program; if not, write to the Free # |
| 21 | # Software Foundation, Inc., 51 Franklin Street, Fifth Floor, # |
| 22 | # Boston, MA 02111, USA # |
| 23 | # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # |
| 24 | # |
| 25 | # The Owl urgent offensive pattern database. These are patterns |
| 26 | # which are always matched. The patterns in owl_attackpats.db |
| 27 | # are not matched if owl_shapes finds that the dragon has two |
| 28 | # eyes. So the patterns in this database are exceptional ones |
| 29 | # corresponding to defects in the optical code. |
| 30 | # |
| 31 | # Further documentation may be found in the Texinfo documentation. |
| 32 | # |
| 33 | # First there is a pattern title of the form: Pattern [string]. The |
| 34 | # string is used for identifying the pattern while tuning or debugging. |
| 35 | # |
| 36 | # Then a block of the following characters representing the pattern |
| 37 | # itself. |
| 38 | # |
| 39 | # ? : don't care |
| 40 | # . : empty |
| 41 | # X : your piece, |
| 42 | # O : my piece, |
| 43 | # x : your piece or empty |
| 44 | # o : my piece or empty |
| 45 | # * : my next move |
| 46 | # ! : your defense move against * (if different) |
| 47 | # -, | : edge of board |
| 48 | # + : corner of board |
| 49 | # |
| 50 | # If a pattern must not match at the edge of the board, |
| 51 | # an extra row of ?'s in the pattern may be added. (This |
| 52 | # will not add to the time taken to check the pattern.) |
| 53 | # |
| 54 | ################# |
| 55 | # |
| 56 | # In the second field (classification) the following pattern attributes |
| 57 | # are possible. Friendly stones are 'O', opponent stones are 'X'. |
| 58 | # |
| 59 | # s : "Sacrifice" pattern. Omit the usual check that an O stone here |
| 60 | # cannot be capture. |
| 61 | # |
| 62 | # n : In addition to usual check that an O stone here cannot be |
| 63 | # captured, check also that an X move cannot be captured. |
| 64 | # |
| 65 | |
| 66 | |
| 67 | attribute_map value_only |
| 68 | |
| 69 | goal_elements Xx |
| 70 | callback_data ! |
| 71 | |
| 72 | |
| 73 | Pattern VA1 |
| 74 | |
| 75 | ?x?? threaten two eyes simultaneously |
| 76 | X.X? |
| 77 | .X*O |
| 78 | X.X? |
| 79 | |
| 80 | :8,-,value(75) |
| 81 | |
| 82 | ?x?? |
| 83 | A.d? |
| 84 | cX*a |
| 85 | XbX? |
| 86 | |
| 87 | ; lib(a)>2 && owl_topological_eye(b,A)==2 && owl_topological_eye(c,A)==2 && oplay_attack(*,d) |
| 88 | |
| 89 | |
| 90 | Pattern VA2 |
| 91 | |
| 92 | |XXO? remaining ko potential |
| 93 | |..XO |
| 94 | |*X.X |
| 95 | |..XX |
| 96 | +---- |
| 97 | |
| 98 | :8,s,value(45) |
| 99 | |
| 100 | |AAO? |
| 101 | |..XO |
| 102 | |*X.B |
| 103 | |..BB |
| 104 | +---- |
| 105 | |
| 106 | ;lib(A)==2 && lib(B)==2 |
| 107 | |
| 108 | |
| 109 | Pattern VA3 |
| 110 | |
| 111 | |XX??? may still be possible to kill through bent four in the corner |
| 112 | |OXx?O |
| 113 | |O.XX* |
| 114 | |..... |
| 115 | +----- |
| 116 | |
| 117 | :8,-,value(45) |
| 118 | |
| 119 | |
| 120 | Pattern VA4 |
| 121 | |
| 122 | |XX?? may still be possible to kill through bent four in the corner |
| 123 | |OXx? |
| 124 | |O.XX |
| 125 | |.*.X |
| 126 | +---- |
| 127 | |
| 128 | :8,s,value(45) |
| 129 | |
| 130 | |
| 131 | Pattern VA5 |
| 132 | |
| 133 | |X?? take ko for possible nakade |
| 134 | |*X? |
| 135 | |XOx |
| 136 | |Oox |
| 137 | +--- |
| 138 | |
| 139 | :8,s,value(45) |
| 140 | |
| 141 | |
| 142 | Pattern VA6 |
| 143 | # Workaround for mistake related to false margins. |
| 144 | |
| 145 | XXXO? |
| 146 | O.OX* |
| 147 | ----- |
| 148 | |
| 149 | :8,s,value(45) |
| 150 | |
| 151 | XXXO? |
| 152 | a.OX* |
| 153 | ----- |
| 154 | |
| 155 | ;lib(a)==2 |
| 156 | |
| 157 | |
| 158 | Pattern VA7 |
| 159 | |
| 160 | |XXx bent four in the corner |
| 161 | |O.X |
| 162 | |OXx |
| 163 | |*OX |
| 164 | +--- |
| 165 | |
| 166 | :8,s,value(45) |
| 167 | |
| 168 | |
| 169 | Pattern VA8 |
| 170 | |
| 171 | *Xx |
| 172 | X.X |
| 173 | XXO |
| 174 | |
| 175 | :8,s,value(45) |
| 176 | |
| 177 | *Xx |
| 178 | A.X |
| 179 | AAO |
| 180 | |
| 181 | ;lib(A)==2 && olib(*)>1 |
| 182 | |
| 183 | |
| 184 | Pattern VA9 |
| 185 | # nn Modified constraint (3.3.14) |
| 186 | |
| 187 | X* atari inside eyespace |
| 188 | |
| 189 | :-,s,value(45) |
| 190 | |
| 191 | A* |
| 192 | |
| 193 | ;lib(A)==2 && olib(*)>1 && owl_big_eyespace(*) |
| 194 | ;&& (owl_eye_size(*) <= 8 || !oplay_attack(*,*)) |
| 195 | |
| 196 | |
| 197 | Pattern VA10 |
| 198 | |
| 199 | X* atari inside eyespace with ko |
| 200 | |
| 201 | :-,s,value(35) |
| 202 | |
| 203 | A* |
| 204 | |
| 205 | ;lib(A)==2 && olib(*)==1 && owl_big_eyespace(*) && oplay_attack(*,*)!=WIN |
| 206 | |
| 207 | |
| 208 | Pattern VA11 |
| 209 | |
| 210 | ?XX??? chance to get nakade |
| 211 | XOOXXx |
| 212 | !OX*.x |
| 213 | ------ |
| 214 | |
| 215 | :8,s,value(65) |
| 216 | |
| 217 | ?XX??? |
| 218 | XaaXXx |
| 219 | .aX*.x |
| 220 | ------ |
| 221 | |
| 222 | ;attack(a) && !defend(a) |
| 223 | |
| 224 | |
| 225 | Pattern VA12 |
| 226 | |
| 227 | |xx?? |
| 228 | |.X?? try to kill with bent four in the corner |
| 229 | |OXXx |
| 230 | |X*.x |
| 231 | +---- |
| 232 | |
| 233 | :8,s,value(75) |
| 234 | |
| 235 | |
| 236 | Pattern VA13 |
| 237 | # This is almost identical to attack pattern A1330. It is needed in |
| 238 | # both places. |
| 239 | |
| 240 | |XX? take ko to maybe kill |
| 241 | |*XX |
| 242 | |XOX |
| 243 | |O!O |
| 244 | +--- |
| 245 | |
| 246 | :8,s,value(85) |
| 247 | |
| 248 | |AA? |
| 249 | |*AA |
| 250 | |XOA |
| 251 | |OaO |
| 252 | +--- |
| 253 | |
| 254 | ;lib(A)<=3 && oplay_attack(a,a) |
| 255 | |
| 256 | |
| 257 | # nn Removal candidate (3.3.14) |
| 258 | # Success rate in regressions : 0% (0/131) |
| 259 | |
| 260 | Pattern VA14 |
| 261 | |
| 262 | ?OX force X to defend inside own eyespace |
| 263 | OX! |
| 264 | *XO |
| 265 | --- |
| 266 | |
| 267 | :8,-,value(35) |
| 268 | |
| 269 | ?bX |
| 270 | ODa |
| 271 | *Dc |
| 272 | --- |
| 273 | |
| 274 | ;lib(b)>1 && lib(c)>1 && owl_eyespace(a) && !attack(D) |
| 275 | |
| 276 | |
| 277 | Pattern VA15 |
| 278 | |
| 279 | X.? sacrifice to destroy eye |
| 280 | X*X |
| 281 | OX. |
| 282 | |
| 283 | :8,s,value(45) |
| 284 | |
| 285 | Ac? |
| 286 | A*X |
| 287 | bXd |
| 288 | |
| 289 | ;lib(A) == 2 && lib(b) > 1 && !oplay_attack(*,c,d,d) |
| 290 | |
| 291 | |
| 292 | Pattern VA16 |
| 293 | |
| 294 | ---- |
| 295 | .X.X play safely inside eyespace to falsify eye |
| 296 | .*Xx |
| 297 | X..? |
| 298 | |
| 299 | :8,-,value(46) |
| 300 | |
| 301 | ---- |
| 302 | .X.X |
| 303 | .*Xx |
| 304 | X..? |
| 305 | |
| 306 | ;owl_eyespace(*) |
| 307 | |
| 308 | |
| 309 | Pattern VA17 |
| 310 | |
| 311 | xXXOo exploit shortage of liberties |
| 312 | !O*XO |
| 313 | .X.Xo |
| 314 | |
| 315 | :8,s,value(35) |
| 316 | |
| 317 | xXXOo |
| 318 | aO*XO |
| 319 | .X.Xo |
| 320 | |
| 321 | ; oplay_attack(*,a,a) |
| 322 | |
| 323 | |
| 324 | Pattern VA18 |
| 325 | |
| 326 | XX!O throw in to kill an eye |
| 327 | .*X? |
| 328 | XXO? |
| 329 | |
| 330 | :8,-,value(35) |
| 331 | |
| 332 | XXaO |
| 333 | .*X? |
| 334 | XXO? |
| 335 | |
| 336 | ; oplay_attack(*,a,a) |
| 337 | |
| 338 | |
| 339 | Pattern VA19 |
| 340 | # gf New pattern. (3.1.11) |
| 341 | |
| 342 | OX.x peep at edge |
| 343 | X.*. |
| 344 | XX.. |
| 345 | ---- |
| 346 | |
| 347 | :8,s,value(75) |
| 348 | |
| 349 | OX.x |
| 350 | A.*. |
| 351 | AA.. |
| 352 | ---- |
| 353 | |
| 354 | ;lib(A)==2 && owl_big_eyespace(*) |
| 355 | |
| 356 | |
| 357 | Pattern VA20 |
| 358 | # tm New pattern. (3.1.13) |
| 359 | # see trevor:450 |
| 360 | |
| 361 | ?X? |
| 362 | X.X |
| 363 | *X? |
| 364 | X.X |
| 365 | ?X? |
| 366 | |
| 367 | :-,-,value(75) |
| 368 | |
| 369 | ?X? |
| 370 | XaX |
| 371 | *C? |
| 372 | XbX |
| 373 | ?X? |
| 374 | |
| 375 | ; owl_topological_eye(a,C) == 2 |
| 376 | ; && owl_topological_eye(b,C) == 2 |
| 377 | |
| 378 | |
| 379 | Pattern VA21 |
| 380 | # gf New pattern. (3.1.14) |
| 381 | # gf Revised pattern. (3.1.17) |
| 382 | |
| 383 | XO? bogus eyespace |
| 384 | .*X |
| 385 | ... |
| 386 | --- |
| 387 | |
| 388 | :8,-,value(75) |
| 389 | |
| 390 | XO? |
| 391 | .*X |
| 392 | .a. |
| 393 | --- |
| 394 | |
| 395 | ;owl_big_eyespace(a) |
| 396 | |
| 397 | |
| 398 | Pattern VA22 |
| 399 | # gf New pattern. (3.1.14) |
| 400 | |
| 401 | x.O bogus eyespace |
| 402 | .*X |
| 403 | ... |
| 404 | --- |
| 405 | |
| 406 | :8,-,value(75) |
| 407 | |
| 408 | xaO |
| 409 | .*B |
| 410 | ... |
| 411 | --- |
| 412 | |
| 413 | ;owl_big_eyespace(*) && oplay_attack(*,a,B) |
| 414 | |
| 415 | |
| 416 | Pattern VA23 |
| 417 | # gf New pattern. (3.1.14) |
| 418 | |
| 419 | ??O? bogus eyespace |
| 420 | x.*X |
| 421 | .... |
| 422 | .... |
| 423 | ---- |
| 424 | |
| 425 | :8,-,value(75) |
| 426 | |
| 427 | ??O? |
| 428 | xc*X |
| 429 | .ba. |
| 430 | .... |
| 431 | ---- |
| 432 | |
| 433 | ;owl_big_eyespace(*) && oplay_attack(*,a,b,c,a) |
| 434 | |
| 435 | |
| 436 | Pattern VA24 |
| 437 | # gf New pattern. (3.1.14) |
| 438 | # gf Revise constraint to update for changed olib behaviour. (3.7.8) |
| 439 | |
| 440 | X* capture inside eyespace, not ko |
| 441 | |
| 442 | :-,-,value(76) |
| 443 | |
| 444 | A* |
| 445 | |
| 446 | ;lib(A)==1 && owl_eyespace(*) && olib(*) > 1 |
| 447 | |
| 448 | |
| 449 | Pattern VA25 |
| 450 | # tm New pattern. (3.1.15) (see cho1:161) |
| 451 | |
| 452 | ?OO| special corner shape. |
| 453 | *X.| |
| 454 | XOX| |
| 455 | XO.| |
| 456 | ---+ |
| 457 | |
| 458 | :8,-,value(76) |
| 459 | |
| 460 | |
| 461 | Pattern VA26 |
| 462 | # gf New pattern. (3.1.15) |
| 463 | |
| 464 | ??XX? making nakade is only chance to kill, unless we can capture |
| 465 | ?XO!X some of the wall |
| 466 | X*XOX |
| 467 | X.OX? |
| 468 | ?XX?? |
| 469 | |
| 470 | :8,s,value(70) |
| 471 | |
| 472 | |
| 473 | Pattern VA26b |
| 474 | # gf New pattern. (3.1.15) |
| 475 | # This pattern is entirely bogus. VA25 gives the correct attack point |
| 476 | # but currently we also need this pattern to get a second match, which |
| 477 | # is necessary to offset the fact that X is thought to have three |
| 478 | # eyes. |
| 479 | |
| 480 | ??XX? making nakade is only chance to kill, unless we can capture |
| 481 | ?XO.X some of the wall |
| 482 | X.XOX |
| 483 | X*OX? |
| 484 | ?XX?? |
| 485 | |
| 486 | :8,s,value(0) |
| 487 | |
| 488 | |
| 489 | Pattern VA27 |
| 490 | # gf New pattern. (3.1.15) |
| 491 | |
| 492 | XX?? not two certain eyes |
| 493 | .*xX |
| 494 | OXOx |
| 495 | ---- |
| 496 | |
| 497 | :8,s,value(45) |
| 498 | |
| 499 | XX?? |
| 500 | .*AX |
| 501 | OXOB |
| 502 | ---- |
| 503 | |
| 504 | ;x_somewhere(A,B) |
| 505 | |
| 506 | |
| 507 | Pattern VA28 |
| 508 | # gf New pattern. (3.1.15) |
| 509 | |
| 510 | XX?? not two certain eyes |
| 511 | .OxX |
| 512 | *XOx |
| 513 | ---- |
| 514 | |
| 515 | :8,s,value(45) |
| 516 | |
| 517 | XX?? |
| 518 | .OAX |
| 519 | *XOB |
| 520 | ---- |
| 521 | |
| 522 | ;x_somewhere(A,B) |
| 523 | |
| 524 | |
| 525 | Pattern VA29 |
| 526 | # gf New pattern. (3.1.15) |
| 527 | |
| 528 | |XXX? not two certain eyes |
| 529 | |!O.X |
| 530 | |OX*x |
| 531 | +---- |
| 532 | |
| 533 | :8,s,value(45) |
| 534 | |
| 535 | |
| 536 | Pattern VA30 |
| 537 | # gf New pattern. (3.1.15) |
| 538 | |
| 539 | ?XX! atari to destroy eye |
| 540 | X.*X |
| 541 | ?XX? |
| 542 | |
| 543 | :8,s,value(45) |
| 544 | |
| 545 | ?XXb |
| 546 | Xa*X |
| 547 | ?CC? |
| 548 | |
| 549 | ;lib(C)==2 && owl_eyespace(a) && oplay_attack(*,a,b,b)!=WIN |
| 550 | |
| 551 | |
| 552 | Pattern VA31 |
| 553 | # tm New pattern (3.1.15) (see maeda0:60) |
| 554 | # gf Added constraint. (3.5.5) |
| 555 | |
| 556 | ?O.| |
| 557 | OX.| |
| 558 | X.X| |
| 559 | X!*| |
| 560 | ??.| |
| 561 | |
| 562 | :8,s,value(76) |
| 563 | |
| 564 | ?Oa| |
| 565 | OXb| |
| 566 | X.X| |
| 567 | X!*| |
| 568 | ??.| |
| 569 | |
| 570 | ;!oplay_attack(a,?,b,a) |
| 571 | |
| 572 | |
| 573 | Pattern VA32 |
| 574 | # tm New pattern (3.1.15) (see maeda0:60) |
| 575 | # gf Added constraint. (3.5.5) |
| 576 | |
| 577 | ?O*| |
| 578 | OX!| |
| 579 | X.X| |
| 580 | XXO| |
| 581 | |
| 582 | :8,s,value(76) |
| 583 | |
| 584 | ?O*| |
| 585 | OXb| |
| 586 | X.X| |
| 587 | XXa| |
| 588 | |
| 589 | ;lib(a)>1 || !oplay_attack(*,?,b,*)==WIN |
| 590 | |
| 591 | |
| 592 | Pattern VA33 |
| 593 | # tm New pattern (3.1.15) |
| 594 | |
| 595 | ?X| |
| 596 | XO| |
| 597 | !O| |
| 598 | *X| |
| 599 | |
| 600 | :8,-,value(76) |
| 601 | |
| 602 | |
| 603 | Pattern VA34 |
| 604 | # tm New pattern (3.1.15) |
| 605 | # See also VA27 |
| 606 | |
| 607 | ?X? |
| 608 | XOX |
| 609 | !OX |
| 610 | *XO |
| 611 | |
| 612 | :8,-,value(76) |
| 613 | |
| 614 | ?X? |
| 615 | XOX |
| 616 | .OX |
| 617 | *XA |
| 618 | |
| 619 | ; oplay_defend_both(*,A,*) |
| 620 | |
| 621 | |
| 622 | Pattern VA35 |
| 623 | |
| 624 | ?XX| |
| 625 | X..| |
| 626 | X*X| |
| 627 | XO.| |
| 628 | ---+ |
| 629 | |
| 630 | :8,s,value(45) |
| 631 | |
| 632 | ?XX| |
| 633 | XA.| |
| 634 | X*X| |
| 635 | XO.| |
| 636 | ---+ |
| 637 | |
| 638 | ; xlib(A)==2 |
| 639 | |
| 640 | |
| 641 | Pattern VA36 |
| 642 | |
| 643 | ?XXX| cut black up |
| 644 | X.OX| |
| 645 | XX*O| |
| 646 | ?OX.| |
| 647 | ??XX| |
| 648 | |
| 649 | :8,s,value(45) |
| 650 | |
| 651 | |
| 652 | Pattern VA37 |
| 653 | # tm New Pattern (3.1.15) |
| 654 | |
| 655 | ?xXO? |
| 656 | ?X.XO |
| 657 | O.X!* |
| 658 | ----- |
| 659 | |
| 660 | :8,-,value(45) |
| 661 | |
| 662 | ?xXO? |
| 663 | ?X.XO |
| 664 | A.X.* |
| 665 | ----- |
| 666 | |
| 667 | ;lib(A) > 2 |
| 668 | |
| 669 | |
| 670 | Pattern VA38 |
| 671 | # gf New pattern. (3.1.15) |
| 672 | # See trevora:25 |
| 673 | |
| 674 | ??O |
| 675 | x!. capture a string at the edge of an eyespace |
| 676 | .*X |
| 677 | ... |
| 678 | --- |
| 679 | |
| 680 | :8,-,value(80) |
| 681 | |
| 682 | ??O |
| 683 | x.. |
| 684 | .*A |
| 685 | ... |
| 686 | --- |
| 687 | |
| 688 | ;owl_big_eyespace(*) && !oplay_defend(*,A) |
| 689 | |
| 690 | |
| 691 | Pattern VA39 |
| 692 | # tm New Pattern (3.1.16) |
| 693 | # gf Revised constraint. (3.5.4) |
| 694 | |
| 695 | XO*| atari to kill eye |
| 696 | !XX| |
| 697 | XOO| |
| 698 | |
| 699 | :8,s,value(95) |
| 700 | |
| 701 | XO*| |
| 702 | aXX| |
| 703 | Xbb| |
| 704 | |
| 705 | ;owl_eyespace(a) && olib(*)>1 && lib(b)>1 |
| 706 | |
| 707 | |
| 708 | Pattern VA40 |
| 709 | # tm New Pattern (3.1.16) (see trevora:550) |
| 710 | |
| 711 | OXx Threaten snapback inside eyespace. |
| 712 | X.. |
| 713 | X.* |
| 714 | X.. |
| 715 | |
| 716 | :8,s,value(95) |
| 717 | |
| 718 | OXx |
| 719 | X.. |
| 720 | A.* |
| 721 | X.. |
| 722 | |
| 723 | ; lib(A) == 3 |
| 724 | |
| 725 | |
| 726 | Pattern VA41 |
| 727 | # tm New Pattern (3.1.16) |
| 728 | |
| 729 | XXO |
| 730 | .*X |
| 731 | !.X |
| 732 | |
| 733 | :8,s,value(95) |
| 734 | |
| 735 | XBO |
| 736 | .*A |
| 737 | ..X |
| 738 | |
| 739 | ;lib(A) ==2 || lib(B) == 2 |
| 740 | |
| 741 | |
| 742 | Pattern VA42 |
| 743 | # tm New Pattern (3.1.16) |
| 744 | |
| 745 | X*X double attack on safe eye |
| 746 | .X. |
| 747 | X.X |
| 748 | OXX |
| 749 | |
| 750 | :8,-,value(75) |
| 751 | |
| 752 | b*c |
| 753 | .X. |
| 754 | X.X |
| 755 | DXX |
| 756 | |
| 757 | ;!attack(D) && oplay_attack(*,b) && oplay_attack(*,c) |
| 758 | |
| 759 | |
| 760 | Pattern VA43 |
| 761 | # tm New Pattern (3.1.17) |
| 762 | |
| 763 | XXX. |
| 764 | .O*. |
| 765 | ---- |
| 766 | |
| 767 | :8,s,value(50) |
| 768 | |
| 769 | XXXb |
| 770 | .O*a |
| 771 | ---- |
| 772 | |
| 773 | ; !oplay_attack(*,a,b,b) |
| 774 | ; && !oplay_attack(*,b,a,a) |
| 775 | |
| 776 | |
| 777 | Pattern VA44 |
| 778 | # tm New Pattern (3.1.17) |
| 779 | # gf Fixed symmetry. (3.3.6) |
| 780 | # nn Modified constraint (3.3.14) |
| 781 | # gf Revised constraint. (3.5.3) |
| 782 | |
| 783 | XoX |
| 784 | o*o |
| 785 | |
| 786 | :|,s,value(57) |
| 787 | |
| 788 | XbX |
| 789 | a*c |
| 790 | |
| 791 | ; owl_proper_eye(*) |
| 792 | ; && (owl_proper_eye(a) + owl_proper_eye(b) + owl_proper_eye(c) > 2) |
| 793 | ; && safe_xmove(*) |
| 794 | ; && ((owl_eye_size(*) <= 8 && owl_maxeye(*)>1) || !oplay_attack(*,*)) |
| 795 | |
| 796 | |
| 797 | Pattern VA45 |
| 798 | # tm New Pattern (3.1.17) |
| 799 | |
| 800 | X* cut to create false eye |
| 801 | OX |
| 802 | -- |
| 803 | |
| 804 | :8,-,value(75) |
| 805 | |
| 806 | X* |
| 807 | OX |
| 808 | -- |
| 809 | |
| 810 | ; !ko(*) |
| 811 | |
| 812 | |
| 813 | Pattern VA46 |
| 814 | # tm New Pattern (3.1.17) |
| 815 | # see trevor:650 |
| 816 | |
| 817 | ?X??? |
| 818 | X.X?? |
| 819 | ?X.O* |
| 820 | |
| 821 | :8,-,value(75) |
| 822 | |
| 823 | ?X??? |
| 824 | CbX?? |
| 825 | ?XAO* |
| 826 | |
| 827 | ; xlib(A) == 1 |
| 828 | ; && olib(A) == 1 |
| 829 | ; && owl_topological_eye(b,C) < 4 && owl_topological_eye(b,C) > 0 |
| 830 | |
| 831 | |
| 832 | Pattern VA47a |
| 833 | # tm Moved from owl_attackpats (3.1.17) |
| 834 | # was A1107 |
| 835 | # gf Split with respect to ko. (3.7.9) |
| 836 | |
| 837 | O* defend the surrounding chain |
| 838 | XO |
| 839 | |
| 840 | :/,-,value(95) |
| 841 | |
| 842 | a* |
| 843 | Xb |
| 844 | |
| 845 | ;vital_chain(a) && vital_chain(b) && !ko(*) && !xplay_defend_both(*,a,b) |
| 846 | |
| 847 | |
| 848 | Pattern VA47b |
| 849 | # tm Moved from owl_attackpats (3.1.17) |
| 850 | # was A1107 |
| 851 | # gf Split with respect to ko. (3.7.9) |
| 852 | |
| 853 | O* defend the surrounding chain |
| 854 | XO |
| 855 | |
| 856 | :/,-,value(65) |
| 857 | |
| 858 | a* |
| 859 | Xb |
| 860 | |
| 861 | ;vital_chain(a) && vital_chain(b) && ko(*) && !xplay_defend_both(*,a,b) |
| 862 | |
| 863 | |
| 864 | Pattern VA48 |
| 865 | # tm New Pattern (3.1.18) |
| 866 | |
| 867 | +---- |
| 868 | |.*.. |
| 869 | |XX!O |
| 870 | |
| 871 | :8,s,value(75) |
| 872 | |
| 873 | |
| 874 | Pattern VA49 |
| 875 | # tm New Pattern (3.1.18) (see trevor:430) |
| 876 | # FIXME: This is non-sense if the ataried stone has neighbours |
| 877 | # in atari (see trevorb:360) |
| 878 | |
| 879 | X* atari outside eyespace |
| 880 | oX |
| 881 | |
| 882 | :8,-,value(35) |
| 883 | |
| 884 | X* |
| 885 | AB |
| 886 | |
| 887 | ; lib(B) <= 2 && owl_eyespace(A) |
| 888 | |
| 889 | |
| 890 | Pattern VA50 |
| 891 | # pp New pattern (3.3.10) |
| 892 | |
| 893 | |xx?? |
| 894 | |Ox?? try to kill with bent four in the corner |
| 895 | |OXXx |
| 896 | |X*.x |
| 897 | +---- |
| 898 | |
| 899 | :8,s,value(45) |
| 900 | |
| 901 | |
| 902 | Pattern VA51 |
| 903 | # pp New pattern (3.3.12) |
| 904 | |
| 905 | |*Oo start an unfavourable ko |
| 906 | |.XO |
| 907 | |X.X |
| 908 | |.Xx |
| 909 | |.O. |
| 910 | +--- |
| 911 | |
| 912 | :8,-,value(35) |
| 913 | |
| 914 | |
| 915 | Pattern VA52a |
| 916 | # gf New pattern. (3.3.20) |
| 917 | |
| 918 | |*Oo make X short of liberties |
| 919 | |.XO |
| 920 | |X.X |
| 921 | |..X |
| 922 | |OXX |
| 923 | |.X? |
| 924 | +--- |
| 925 | |
| 926 | :8,-,value(65) |
| 927 | |
| 928 | |
| 929 | Pattern VA52b |
| 930 | # gf New pattern. (3.3.20) |
| 931 | |
| 932 | |*Oo |
| 933 | |OXO make X short of liberties |
| 934 | |.XO |
| 935 | |X.X |
| 936 | |..X |
| 937 | |OXX |
| 938 | |.X? |
| 939 | +--- |
| 940 | |
| 941 | :8,-,value(65) |
| 942 | |
| 943 | |
| 944 | Pattern VA53 |
| 945 | # gf New pattern. (3.3.20) |
| 946 | # See ld_owl:68. |
| 947 | |
| 948 | |XXX nakade if X cannot squeeze |
| 949 | |O.X |
| 950 | |XOX |
| 951 | |*OX |
| 952 | +--- |
| 953 | |
| 954 | :8,s,value(75) |
| 955 | |
| 956 | |AAA |
| 957 | |O.A |
| 958 | |XOA |
| 959 | |*OA |
| 960 | +--- |
| 961 | |
| 962 | ;lib(A)==2 |
| 963 | |
| 964 | |
| 965 | Pattern VA54 |
| 966 | # mh New pattern (3.5.4) |
| 967 | # See ld_owl:413/414 |
| 968 | |
| 969 | X.X play atari inside one eye to destroy the other eye |
| 970 | *XO |
| 971 | |
| 972 | :8,s,value(45) |
| 973 | |
| 974 | XaX |
| 975 | *BO |
| 976 | |
| 977 | ;lib(B)==2 && olib(*)>=2 && owl_proper_eye(*) && owl_maxeye(a)>0 |
| 978 | |
| 979 | |
| 980 | Pattern VA55 |
| 981 | # gf New pattern. (3.7.9) |
| 982 | # See ld_owl:406. |
| 983 | |
| 984 | ?X? force opponent to fill one eye |
| 985 | X.X |
| 986 | .XO |
| 987 | *.? |
| 988 | --- |
| 989 | |
| 990 | :8,s,value(45) |
| 991 | |
| 992 | ?X? |
| 993 | X.X |
| 994 | bXO |
| 995 | *a? |
| 996 | --- |
| 997 | |
| 998 | ;xlib(a)==3 && oplay_lib(*,a,b,b)>1 |
| 999 | |
| 1000 | |
| 1001 | Pattern VA56 |
| 1002 | # gf New pattern. (3.7.9) |
| 1003 | # See ld_owl:326. |
| 1004 | |
| 1005 | xXOo destroy eye |
| 1006 | X.XO |
| 1007 | OX.* |
| 1008 | ---- |
| 1009 | |
| 1010 | :8,-,value(45) |
| 1011 | |
| 1012 | xXOo |
| 1013 | XaXO |
| 1014 | OX.* |
| 1015 | ---- |
| 1016 | |
| 1017 | ;owl_mineye(a)==1 |
| 1018 | |
| 1019 | |
| 1020 | # END OF FILE |