| 1 | # Life and death test problems. |
| 2 | loadsgf games/life_and_death/ld1.sgf |
| 3 | 1 dragon_status B18 |
| 4 | #? [critical (A15|A18) (A15|A18)] |
| 5 | 2 dragon_status S18 |
| 6 | #? [critical (T18|O18) T18] |
| 7 | 3 dragon_status S2 |
| 8 | #? [critical S1 (S1|S7)] |
| 9 | 4 dragon_status B2 |
| 10 | #? [critical (A2|F2) (A2|F2|C1)] |
| 11 | |
| 12 | loadsgf games/life_and_death/ld2.sgf |
| 13 | 5 dragon_status B18 |
| 14 | #? [critical (B19|E19) (B19|E19|F18|F19)] |
| 15 | 6 dragon_status S18 |
| 16 | #? [dead] |
| 17 | 7 dragon_status S2 |
| 18 | #? [dead] |
| 19 | 8 dragon_status B2 |
| 20 | #? [critical A2 (A2|A5|B6|A6)] |
| 21 | |
| 22 | loadsgf games/life_and_death/ld3.sgf |
| 23 | 9 dragon_status B18 |
| 24 | #? [critical A14 (A17|A14|B13|A13)] |
| 25 | 10 dragon_status S18 |
| 26 | #? [critical T15 (T15|S14|T14)] |
| 27 | 11 dragon_status S2 |
| 28 | #? [critical (S6|T6|T7|T2) S6] |
| 29 | # Attacking on F1 only gives a ko, which is a failure. |
| 30 | 12 dragon_status B2 |
| 31 | #? [critical B1 (E1|E2|B1|F1)] |
| 32 | |
| 33 | loadsgf games/life_and_death/ld4.sgf |
| 34 | 13 dragon_status B18 |
| 35 | #? [dead] |
| 36 | 14 dragon_status S18 |
| 37 | #? [critical P18 (P18|R19)] |
| 38 | 15 dragon_status S2 |
| 39 | #? [critical T5 (S5|T6|T5)] |
| 40 | 16 dragon_status B2 |
| 41 | #? [critical A2 (B5|A6|A5|A2)] |
| 42 | |
| 43 | loadsgf games/life_and_death/ld5.sgf |
| 44 | 17 dragon_status B18 |
| 45 | #? [critical A14 (A14|B17|A17|A18)] |
| 46 | 18 dragon_status S18 |
| 47 | #? [critical T17 (S17|T17|T18)] |
| 48 | 19 dragon_status S2 |
| 49 | #? [critical (S3|T5) (S3|T5)] |
| 50 | 20 dragon_status B2 |
| 51 | #? [critical (B3|A2|A6) (A2|A4|B3)] |
| 52 | |
| 53 | loadsgf games/life_and_death/ld6.sgf |
| 54 | 21 dragon_status B18 |
| 55 | #? [critical (A14|A17|B19) A17] |
| 56 | 22 dragon_status S18 |
| 57 | #? [critical T18 (T18|R18|R19|Q19)] |
| 58 | 23 dragon_status S2 |
| 59 | #? [dead] |
| 60 | 24 dragon_status B2 |
| 61 | #? [critical F1 (F1|D2|D1|B1)] |
| 62 | |
| 63 | loadsgf games/life_and_death/ld7.sgf |
| 64 | 25 dragon_status B18 |
| 65 | #? [dead] |
| 66 | 26 dragon_status S18 |
| 67 | #? [alive] |
| 68 | 27 dragon_status S2 |
| 69 | #? [critical (Q2|T2|N2) Q1] |
| 70 | 28 dragon_status B2 |
| 71 | #? [alive] |
| 72 | |
| 73 | loadsgf games/life_and_death/ld8.sgf |
| 74 | 29 dragon_status B16 |
| 75 | #? [critical C18 (C18|B18|D18)] |
| 76 | 30 dragon_status S18 |
| 77 | #? [critical Q18 (Q18|S19|R19|S14)] |
| 78 | 31 dragon_status S4 |
| 79 | #? [alive] |
| 80 | 32 dragon_status B2 |
| 81 | #? [critical (C1|A5|A2) (A5|C1|A2)] |
| 82 | |
| 83 | loadsgf games/life_and_death/ld9.sgf |
| 84 | 33 dragon_status C16 |
| 85 | #? [dead] |
| 86 | 34 dragon_status R16 |
| 87 | #? [critical (Q19|S18|T18|T16) (T18|S18|Q19)] |
| 88 | 35 dragon_status R3 |
| 89 | #? [critical (T5|S2) (S2|T2|T3)] |
| 90 | 36 dragon_status C4 |
| 91 | #? [alive] |
| 92 | |
| 93 | loadsgf games/life_and_death/ld10.sgf |
| 94 | 37 dragon_status C16 |
| 95 | #? [critical (A17|C19) (A17|C19|A16|A18)] |
| 96 | 38 dragon_status R16 |
| 97 | #? [dead] |
| 98 | 39 dragon_status R3 |
| 99 | #? [dead] |
| 100 | 40 dragon_status C4 |
| 101 | #? [critical (A5|B2) (B2|A2)] |
| 102 | |
| 103 | loadsgf games/life_and_death/ld11.sgf |
| 104 | 41 dragon_status C16 |
| 105 | #? [critical B19 (B19|A16|B18|C19)] |
| 106 | 42 dragon_status R16 |
| 107 | #? [dead] |
| 108 | 43 dragon_status R3 |
| 109 | #? [critical (R1|S2|T7) S2] |
| 110 | # B2 lives but allows the opponent to make seki (or ko). |
| 111 | 44 dragon_status C4 |
| 112 | #? [critical D1 (A2|D1|B2)] |
| 113 | |
| 114 | loadsgf games/life_and_death/ld12.sgf |
| 115 | 45 dragon_status C16 |
| 116 | #? [alive] |
| 117 | 46 dragon_status R16 |
| 118 | #? [alive] |
| 119 | 47 dragon_status R3 |
| 120 | #? [dead] |
| 121 | 48 dragon_status C4 |
| 122 | #? [alive] |
| 123 | |
| 124 | loadsgf games/life_and_death/ld13.sgf |
| 125 | 49 dragon_status C16 |
| 126 | #? [critical B18 (A18|B18)] |
| 127 | 50 dragon_status R16 |
| 128 | #? [critical (T18|T16) (T18|S18|Q19)] |
| 129 | 51 dragon_status R3 |
| 130 | #? [critical S1 (R1|S1|T5|T4|T3|S2|S3|T1)] |
| 131 | # B1 is a better defense than D1 because the latter only lives by double ko. |
| 132 | # FIXME: D1 and A5 only attack with ko since black can reply at A2. |
| 133 | 52 dragon_status C4 |
| 134 | #? [critical (D1|A5) (B1|D1|B2)] |
| 135 | |
| 136 | loadsgf games/life_and_death/ld14.sgf |
| 137 | 53 dragon_status C16 |
| 138 | #? [critical (C19|B19|B18|A18) (A18|B18)] |
| 139 | 54 dragon_status R16 |
| 140 | #? [critical (T16|O19|T17|T18|S18) T18] |
| 141 | 55 dragon_status R3 |
| 142 | #? [critical (S2|T5|S3|T3|T2|R1|S1) S2] |
| 143 | 56 dragon_status C4 |
| 144 | #? [critical (D1|A5|A2) B1] |
| 145 | |
| 146 | loadsgf games/life_and_death/ld15.sgf |
| 147 | 57 dragon_status C16 |
| 148 | #? [critical (A16|A17|A18|B18) A18] |
| 149 | 58 dragon_status R16 |
| 150 | #? [critical Q19 (T18|S18|Q19|S19)] |
| 151 | 59 dragon_status R3 |
| 152 | #? [alive] |
| 153 | 60 dragon_status C4 |
| 154 | #? [alive] |
| 155 | |
| 156 | loadsgf games/life_and_death/ld16.sgf |
| 157 | 61 dragon_status C16 |
| 158 | #? [critical (B12|D13|D14|A14|A12|B11|C19|B18|A18|B19) (A18|B18|A14|B12)] |
| 159 | 62 dragon_status R16 |
| 160 | #? [alive] |
| 161 | 63 dragon_status R3 |
| 162 | #? [critical (S2|Q2|R2|R1|S1|T5) S2] |
| 163 | 64 dragon_status C4 |
| 164 | #? [alive] |
| 165 | |
| 166 | loadsgf games/life_and_death/ld17.sgf |
| 167 | 65 dragon_status B2 |
| 168 | #? [critical A2 A2] |
| 169 | |
| 170 | loadsgf games/life_and_death/ld18.sgf 1 |
| 171 | 66 dragon_status C9 |
| 172 | #? [alive] |
| 173 | |
| 174 | loadsgf games/life_and_death/ld18.sgf |
| 175 | 67 dragon_status C9 |
| 176 | #? [critical A9 A7] |
| 177 | |
| 178 | # No need to play ko with B2 |
| 179 | loadsgf games/life_and_death/ld13.sgf |
| 180 | play white A5 |
| 181 | play black A4 |
| 182 | play white D1 |
| 183 | play black A2 |
| 184 | 68 owl_attack C4 |
| 185 | #? [1 B1] |
| 186 | |
| 187 | # Clean capture, no ko. |
| 188 | loadsgf games/life_and_death/ld13.sgf |
| 189 | 69 owl_attack R16 |
| 190 | #? [1 (T16|T18)] |
| 191 | |
| 192 | # Two-stage ko. |
| 193 | loadsgf games/life_and_death/ld9.sgf |
| 194 | play white E1 |
| 195 | 70 owl_attack C4 |
| 196 | #? [2 B2]* |
| 197 | |
| 198 | loadsgf games/life_and_death/lunches.sgf |
| 199 | 101 dragon_status A17 |
| 200 | #? [dead] |
| 201 | 102 dragon_status A11 |
| 202 | #? [critical (C14|E14|F13|E11) E14] |
| 203 | 103 dragon_status A5 |
| 204 | #? [critical (A1|E7|M2|M1|N2|N1|O2|O1|P1) (A1|E7|M2|A8|C8|F4)] |
| 205 | 104 dragon_status S1 |
| 206 | #? [critical T6 (T6|T8)] |
| 207 | 105 dragon_status H18 |
| 208 | #? [dead] |
| 209 | 106 dragon_status M7 |
| 210 | #? [critical (O8|L8) O8] |
| 211 | |
| 212 | # Life and death problems derived from the tripod group. |
| 213 | loadsgf games/life_and_death/tripod1.sgf |
| 214 | 151 dragon_status C17 |
| 215 | #? [alive] |
| 216 | 152 dragon_status R17 |
| 217 | #? [critical (S17|Q18|T16) T17] |
| 218 | 153 dragon_status R3 |
| 219 | #? [alive] |
| 220 | 154 dragon_status C3 |
| 221 | #? [critical (B3|D2|B1|A2) B1] |
| 222 | |
| 223 | loadsgf games/life_and_death/tripod2.sgf |
| 224 | 155 dragon_status C17 |
| 225 | #? [critical (B16|B18) B18] |
| 226 | 156 dragon_status R17 |
| 227 | #? [alive] |
| 228 | 157 owl_attack R3 |
| 229 | #? [1 Q1] |
| 230 | 158 owl_defend R3 |
| 231 | #? [1 T1] |
| 232 | 159 dragon_status C3 |
| 233 | #? [critical (D2|A4) B1] |
| 234 | |
| 235 | loadsgf games/life_and_death/tripod3.sgf |
| 236 | 160 dragon_status C17 |
| 237 | #? [critical B19 (B18|B19|C19)] |
| 238 | 161 dragon_status R17 |
| 239 | #? [dead] |
| 240 | 162 dragon_status R3 |
| 241 | #? [critical P1 R1] |
| 242 | 163 owl_attack C3 |
| 243 | #? [3 B1] |
| 244 | 164 owl_defend C3 |
| 245 | #? [1 (B2|B1|A2)] |
| 246 | |
| 247 | loadsgf games/life_and_death/tripod4.sgf |
| 248 | 165 owl_attack C17 |
| 249 | #? [1 (A16|B18)] |
| 250 | 166 owl_defend C17 |
| 251 | #? [2 B18] |
| 252 | 167 owl_attack R17 |
| 253 | #? [3 T15] |
| 254 | 168 owl_defend R17 |
| 255 | #? [1 (R19|T16|T18|T19)] |
| 256 | 169 owl_attack R3 |
| 257 | #? [1 Q1] |
| 258 | 170 owl_defend R3 |
| 259 | #? [2 Q1] |
| 260 | 171 owl_attack C3 |
| 261 | #? [3 A2] |
| 262 | 172 owl_defend C3 |
| 263 | #? [1 (C1|A2)] |
| 264 | |
| 265 | loadsgf games/life_and_death/tripod5.sgf |
| 266 | 173 dragon_status C17 |
| 267 | #? [critical (C18|D19|A16) C19] |
| 268 | 174 dragon_status R17 |
| 269 | #? [alive] |
| 270 | 175 dragon_status R3 |
| 271 | #? [critical (T4|S2) S2] |
| 272 | 176 dragon_status C3 |
| 273 | #? [alive] |
| 274 | |
| 275 | loadsgf games/life_and_death/tripod6.sgf |
| 276 | # This is an extremely good ko for white. Black has to ignore 3 ko |
| 277 | # threats to be able to live. |
| 278 | 177 owl_attack C17 |
| 279 | #? [2 D19] |
| 280 | 178 owl_defend C17 |
| 281 | #? [1 (A19|A17)] |
| 282 | 179 owl_attack R17 |
| 283 | #? [3 T17] |
| 284 | 180 owl_defend R17 |
| 285 | #? [1 (Q18|T17|S18|T18|S17|S19)] |
| 286 | 181 owl_attack R3 |
| 287 | #? [1 (R2|S4|P1)] |
| 288 | 182 owl_defend R3 |
| 289 | #? [2 S1] |
| 290 | 183 owl_attack C3 |
| 291 | #? [3 B2] |
| 292 | 184 owl_defend C3 |
| 293 | #? [1 (B1|B2|B3|A4|D2)] |
| 294 | |
| 295 | loadsgf games/life_and_death/tripod7.sgf |
| 296 | 185 owl_attack C17 |
| 297 | #? [1 (A19|A18)] |
| 298 | 186 owl_defend C17 |
| 299 | #? [2 (A18|C18)] |
| 300 | 187 owl_attack R17 |
| 301 | #? [1 (Q19|S19)] |
| 302 | 188 owl_defend R17 |
| 303 | #? [2 Q19] |
| 304 | 189 dragon_status R3 |
| 305 | #? [critical S1 (S4|S1|T2)] |
| 306 | 190 dragon_status C3 |
| 307 | #? [critical (B3|D2|B5|A5|A4) A2] |
| 308 | |
| 309 | loadsgf games/life_and_death/tripod8.sgf |
| 310 | 191 dragon_status C17 |
| 311 | #? [alive] |
| 312 | 192 dragon_status R17 |
| 313 | #? [critical (T19|S19) (S17|S19)] |
| 314 | 193 dragon_status R3 |
| 315 | #? [critical (S4|T4|T5) S4] |
| 316 | 194 owl_attack C3 |
| 317 | #? [3 B1] |
| 318 | 195 owl_defend C3 |
| 319 | #? [1 (C1|A5|A3|A2|B1)] |
| 320 | |
| 321 | loadsgf games/life_and_death/tripod9.sgf |
| 322 | 196 owl_attack C17 |
| 323 | #? [1 B19] |
| 324 | 197 owl_defend C17 |
| 325 | #? [2 B19] |
| 326 | 198 dragon_status R17 |
| 327 | #? [dead] |
| 328 | 199 dragon_status R3 |
| 329 | #? [alive] |
| 330 | 200 dragon_status C3 |
| 331 | #? [dead] |
| 332 | |
| 333 | # More life and death problems around tripod group. |
| 334 | |
| 335 | loadsgf games/life_and_death/tripod4.sgf |
| 336 | # Black tries a bad defense. He must be punished. |
| 337 | play black Q19 |
| 338 | 201 owl_attack Q19 |
| 339 | #? [3 T15] |
| 340 | |
| 341 | # Mixed life and death problems. |
| 342 | loadsgf games/life_and_death/mixed1.sgf |
| 343 | 300 owl_attack C17 |
| 344 | #? [1 (E19|D19|C19|B18|B19|A18|A19)] |
| 345 | 301 owl_defend C17 |
| 346 | #? [1 C19]* |
| 347 | 302 dragon_status R17 |
| 348 | #? [critical T19 (Q19|R18)] |
| 349 | 303 dragon_status R3 |
| 350 | #? [critical (S3|Q3|Q1|T2|T3) S3] |
| 351 | 304 dragon_status C3 |
| 352 | #? [critical (A2|E1) A2] |
| 353 | |
| 354 | loadsgf games/life_and_death/comb1.sgf |
| 355 | 305 dragon_status C3 |
| 356 | #? [critical E2 (E2|E1)] |
| 357 | |
| 358 | loadsgf games/life_and_death/ld19.sgf |
| 359 | 306 owl_attack C17 |
| 360 | #? [1 B19] |
| 361 | 307 owl_defend C17 |
| 362 | #? [1 (E19|C19|B19|A18|A16)] |
| 363 | 308 owl_attack R17 |
| 364 | #? [1 T17] |
| 365 | 309 owl_defend R17 |
| 366 | #? [1 (T17|S19|Q19)] |
| 367 | 310 owl_attack R3 |
| 368 | #? [1 T2] |
| 369 | 311 owl_defend R3 |
| 370 | #? [1 (T2|R1|P1)] |
| 371 | 312 owl_attack C3 |
| 372 | #? [1 B1] |
| 373 | 313 owl_defend C3 |
| 374 | #? [1 (B1|A4)] |
| 375 | |
| 376 | loadsgf games/owl49.sgf 1 |
| 377 | 314 owl_defend R17 |
| 378 | #? [1 P18]* |
| 379 | play black P17 |
| 380 | 315 owl_attack P17 |
| 381 | #? [1 P18] |
| 382 | |
| 383 | loadsgf games/owl49.sgf 7 |
| 384 | 316 owl_defend Q17 |
| 385 | #? [1 T16] |
| 386 | |
| 387 | loadsgf games/life_and_death/mixed2.sgf |
| 388 | 317 owl_attack C13 |
| 389 | #? [1 E13]* |
| 390 | 318 owl_attack L12 |
| 391 | #? [1 L10] |
| 392 | 319 owl_defend C3 |
| 393 | #? [3 D2] |
| 394 | 320 owl_attack L5 |
| 395 | #? [3 M5] |
| 396 | |
| 397 | loadsgf games/life_and_death/mixed3.sgf |
| 398 | 321 owl_attack D11 |
| 399 | #? [2 B12] |
| 400 | 322 owl_attack K13 |
| 401 | #? [1 (N11|N13|PASS)]* |
| 402 | 323 owl_defend K13 |
| 403 | #? [0] |
| 404 | 324 owl_attack L4 |
| 405 | #? [1 N2] |
| 406 | 325 owl_defend B3 |
| 407 | #? [1 E1]* |
| 408 | |
| 409 | loadsgf games/life_and_death/mixed4.sgf |
| 410 | 326 owl_attack B11 |
| 411 | #? [1 B13] |
| 412 | 327 owl_attack L12 |
| 413 | #? [1 M13] |
| 414 | 328 owl_attack K5 |
| 415 | #? [1 (N5|N3|J2)]* |
| 416 | 329 owl_defend K5 |
| 417 | #? [1 N3]* |
| 418 | |
| 419 | # tough under the stones problem from Sensei's Library |
| 420 | loadsgf games/owl47.sgf 5 |
| 421 | 404 owl_attack Q4 |
| 422 | #? [1 S4] |
| 423 | loadsgf games/owl47.sgf 6 |
| 424 | 405 owl_defend Q4 |
| 425 | #? [0] |
| 426 | loadsgf games/owl47.sgf 7 |
| 427 | 406 owl_attack Q4 |
| 428 | #? [1 R3] |
| 429 | loadsgf games/owl47.sgf 8 |
| 430 | 407 owl_defend Q4 |
| 431 | #? [0] |
| 432 | loadsgf games/owl47.sgf 9 |
| 433 | 408 owl_attack Q4 |
| 434 | #? [1 T3] |
| 435 | loadsgf games/owl47.sgf 10 |
| 436 | 409 owl_defend Q4 |
| 437 | #? [0] |
| 438 | loadsgf games/owl47.sgf 11 |
| 439 | 410 owl_attack Q4 |
| 440 | #? [1 (R3|T2)] |
| 441 | loadsgf games/owl47.sgf 12 |
| 442 | 411 owl_defend Q4 |
| 443 | #? [0] |
| 444 | loadsgf games/owl47.sgf 13 |
| 445 | 412 owl_attack Q4 |
| 446 | #? [1 T2] |
| 447 | loadsgf games/owl47.sgf 14 |
| 448 | 413 owl_defend Q4 |
| 449 | #? [0] |
| 450 | loadsgf games/owl47.sgf 15 |
| 451 | 414 owl_attack Q4 |
| 452 | #? [1 S2] |
| 453 | |
| 454 | # Problems arising from a 3-3 invasion. |
| 455 | loadsgf games/life_and_death/invasion1.sgf |
| 456 | 501 owl_defend C17 |
| 457 | #? [1 C15] |
| 458 | 502 owl_defend R17 |
| 459 | #? [1 (R14|S14|R16)] |
| 460 | 503 owl_defend R3 |
| 461 | #? [1 S2]* |
| 462 | 504 owl_attack C3 |
| 463 | #? [1 B1] |
| 464 | |
| 465 | loadsgf games/life_and_death/invasion2.sgf |
| 466 | 505 owl_attack C17 |
| 467 | #? [1 (C19|B19)] |
| 468 | 506 owl_defend R17 |
| 469 | #? [1 S16] |
| 470 | 507 owl_defend R3 |
| 471 | #? [1 S2]* |
| 472 | 508 owl_defend R5 |
| 473 | #? [1 (S2|S7)] |
| 474 | 509 owl_defend C5 |
| 475 | #? [1 A5]* |
| 476 | |
| 477 | loadsgf games/life_and_death/invasion3.sgf |
| 478 | 510 owl_defend C15 |
| 479 | #? [1 B15]* |
| 480 | 511 owl_defend R15 |
| 481 | #? [1 (R12|R11)]* |
| 482 | 512 owl_defend R3 |
| 483 | #? [1 S5] |
| 484 | 513 owl_defend C3 |
| 485 | #? [1 C2]* |
| 486 | |
| 487 | loadsgf games/life_and_death/invasion4.sgf |
| 488 | 514 owl_defend C17 |
| 489 | #? [1 B16] |
| 490 | 515 owl_defend R15 |
| 491 | #? [1 S15] |
| 492 | 516 owl_defend R3 |
| 493 | #? [1 S2] |
| 494 | 517 owl_defend C3 |
| 495 | #? [1 C8]* |
| 496 | |
| 497 | loadsgf games/life_and_death/ld20.sgf |
| 498 | 520 owl_defend B4 |
| 499 | #? [2 B3]* |
| 500 | |
| 501 | loadsgf games/life_and_death/eye1.sgf |
| 502 | 530 owl_attack B9 |
| 503 | #? [1 D9]* |
| 504 | 531 owl_defend B9 |
| 505 | #? [1 (D9|E9|E8)] |
| 506 | 532 owl_attack F2 |
| 507 | #? [1 J2]* |
| 508 | 533 owl_defend F2 |
| 509 | #? [1 J2]* |