FlipMind benchmark result (2026-11-13) Platform: x86 AVX2 build, AMD Ryzen 5 5600X (6 cores, 12 threads), Windows 11 Pro Engine: Edax 4.5.6 (official x86-64-v3 build) Problems: FFO 40-59 (FFO endgame tests #40-#59, 20 positions, 20-34 empties) Mode: BEST (best move and its exact score) Conditions: 12 threads, no book, engines alternated, 3 rounds Time: total solve time reported by the engine Correct: 20/20 Average: 46.027 s (rounds: 46.003 / 46.219 / 45.859) [Raw engine output] === round 1 === Edax version 4.5.6 Oct 28 2026 19:44:25 for Windows copyright 1998 - 2025 Richard Delorme, Toshihiko Okuhara WARNING: missing best score in O--OOOOX-OOOOOOXOOXXOOOXOOXOOOXXOOOOOOXX---OOOOX----O--X-------- X; # | depth|score| time | nodes (N) | N/s | principal variation ---+------+-----+--------------+-------------+----------+--------------------- 1| 20 +38 0:00.031 10014823 323058806 a2 B1 c1 PS b6 C7 a7 WARNING: missing best score in -OOOOO----OOOOX--OOOOOO-XXXXXOO--XXOOX--OOXOXX----OXXO---OOO--O- X; 2| 22 +00 0:00.063 21316279 338353635 h4 A3 a2 G6 g5 H5 f8 WARNING: missing best score in --OOO-------XX-OOOOOOXOO-OOOOXOOX-OOOXXO---OOXOO---OOOXO--OOOO-- X; 3| 22 +06 0:00.079 26926826 340845899 g2 H1 c2 G1 f1 D2 b2 WARNING: missing best score in --XXXXX---XXXX---OOOXX---OOXXXX--OOXXXO-OOOOXOO----XOX----XXXXX- O; 4| 23 -12 0:00.204 79979396 392055863 G3 h6 C7 h4 H5 h3 G2 WARNING: missing best score in --O-X-O---O-XO-O-OOXXXOOOOOOXXXOOOOOXX--XXOOXO----XXXX-----XXX-- O; 5| 23 -14 0:00.079 22876321 289573684 B8 g5 D2 a3 B7 a8 A7 WARNING: missing best score in ---XXXX-X-XXXO--XXOXOO--XXXOXO--XXOXXO---OXXXOO-O-OOOO------OO-- X; 6| 24 +06 0:00.563 267612525 475333082 b2 C1 g5 H4 h6 G4 b1 WARNING: missing best score in ---XXX----OOOX----OOOXX--OOOOXXX--OOOOXX--OXOXXX--XXOO---XXXX-O- X; 7| 24 -08 0:00.125 64306777 514454216 b3 C1 b1 A3 b2 H3 a5 WARNING: missing best score in -OOOOO----OOOO---OOOOX--XXXXXX---OXOOX--OOOXOX----OOXX----XXXX-- O; 8| 25 +04 0:00.078 21044009 269794987 G2 b8 B7 a2 A5 b2 G3 WARNING: missing best score in -----X--X-XXX---XXXXOO--XOXOOXX-XOOXXX--XOOXX-----OOOX---XXXXXX- O; 9| 25 +28 0:00.328 146652183 447110314 F6 g5 G3 f2 H4 h5 H3 WARNING: missing best score in --OX-O----XXOO--OOOOOXX-OOOOOX--OOOXOXX-OOOOXX-----OOX----X-O--- X; 10| 26 +16 0:00.782 370423301 473687086 e1 H4 g6 H6 h5 G4 b2 WARNING: missing best score in ----X-----XXX----OOOXOOO-OOOXOOO-OXOXOXO-OOXXOOO--OOXO----O--O-- X; 11| 26 +10 0:01.953 1020285218 522419466 d8 E8 g8 H8 f2 G7 b7 WARNING: missing best score in ----O-X------X-----XXXO-OXXXXXOO-XXOOXOOXXOXXXOO--OOOO-O----OO-- O; 12| 27 +06 0:00.765 418433618 546972050 E2 h2 G7 f1 H1 h3 D1 WARNING: missing best score in ---X-------OX--X--XOOXXXXXXOXXXXXXXOOXXXXXXOOOXX--XO---X-------- O; 13| 27 +00 0:01.219 664069736 544765985 A3 f2 E1 f1 C2 b1 B3 WARNING: missing best score in ----OO-----OOO---XXXXOOO--XXOOXO-XXXXXOO--OOOXOO--X-OX-O-----X-- X; 14| 28 -02 0:04.328 2557443135 590906454 d8 B6 d7 A5 b4 A4 a3 WARNING: missing best score in --OOO---XXOO----XXXXOOOOXXXXOX--XXXOXX--XXOOO------OOO-----O---- X; 15| 28 -02 0:06.297 3942248814 626051900 c7 G6 g5 F6 g4 C8 b7 WARNING: missing best score in --------X-X------XXXXOOOOOXOXX--OOOXXXX-OOXXXX--O-OOOX-----OO--- O; 16| 29 +00 0:19.109 11559233985 604910460 G6 h7 C1 f2 G2 g8 F8 WARNING: missing best score in --XXXXX---XXXX---OOOXX---OOXOX---OXXXXX-OOOOOXO----OXX---------- O; 17| 29 +02 0:02.344 1279266905 545762331 H5 h4 H3 d8 C8 c7 E8 WARNING: missing best score in -------------------XXOOO--XXXOOO--XXOXOO-OOOXXXO--OXOO-O-OOOOO-- X; 18| 30 -10 0:03.828 1484850329 387891935 a6 B5 b4 E2 f2 E1 g1 WARNING: missing best score in --XOOO----OOO----OOOXOO--OOOOXO--OXOXXX-OOXXXX----X-XX---------- X; 19| 30 +04 0:03.812 1924940714 504968708 g1 F2 h3 D8 c8 D7 e8 WARNING: missing best score in -----------------------O--OOOOO---OOOOOXOOOOXXXX--XXOOXX--XX-O-X X; 20| 34 +64 0:00.016 944916 59057250 g8 E8 h4 B7 h2 B8 a8 ---+------+-----+--------------+-------------+----------+--------------------- \Documents\eval: 25882869810 nodes in 0:46.003 (562634389 nodes/s). 20 positions; 0 erroneous move; 0 erroneous score; mean absolute score error = 0.000; mean absolute move error = 0.000 === round 2 === Edax version 4.5.6 Oct 28 2026 19:44:25 for Windows copyright 1998 - 2025 Richard Delorme, Toshihiko Okuhara WARNING: missing best score in O--OOOOX-OOOOOOXOOXXOOOXOOXOOOXXOOOOOOXX---OOOOX----O--X-------- X; # | depth|score| time | nodes (N) | N/s | principal variation ---+------+-----+--------------+-------------+----------+--------------------- 1| 20 +38 0:00.031 10112209 326200290 a2 B1 c1 PS b6 C7 a7 WARNING: missing best score in -OOOOO----OOOOX--OOOOOO-XXXXXOO--XXOOX--OOXOXX----OXXO---OOO--O- X; 2| 22 +00 0:00.063 21446245 340416587 h4 A3 a2 G6 g5 H5 f8 WARNING: missing best score in --OOO-------XX-OOOOOOXOO-OOOOXOOX-OOOXXO---OOXOO---OOOXO--OOOO-- X; 3| 22 +06 0:00.078 27946533 358288885 g2 H1 c2 G1 f1 D2 b2 WARNING: missing best score in --XXXXX---XXXX---OOOXX---OOXXXX--OOXXXO-OOOOXOO----XOX----XXXXX- O; 4| 23 -12 0:00.203 76927840 378954877 G3 h6 H5 c7 G7 h8 H7 WARNING: missing best score in --O-X-O---O-XO-O-OOXXXOOOOOOXXXOOOOOXX--XXOOXO----XXXX-----XXX-- O; 5| 23 -14 0:00.094 22079335 234886543 B8 g5 D2 a3 B7 a8 A7 WARNING: missing best score in ---XXXX-X-XXXO--XXOXOO--XXXOXO--XXOXXO---OXXXOO-O-OOOO------OO-- X; 6| 24 +06 0:00.562 263786643 469371251 b2 C1 g5 H4 h6 G4 b1 WARNING: missing best score in ---XXX----OOOX----OOOXX--OOOOXXX--OOOOXX--OXOXXX--XXOO---XXXX-O- X; 7| 24 -08 0:00.141 62850768 445750128 b3 C1 b1 A3 b2 H3 a5 WARNING: missing best score in -OOOOO----OOOO---OOOOX--XXXXXX---OXOOX--OOOXOX----OOXX----XXXX-- O; 8| 25 +04 0:00.062 20396363 328973597 G2 b8 B7 a2 A5 b2 G3 WARNING: missing best score in -----X--X-XXX---XXXXOO--XOXOOXX-XOOXXX--XOOXX-----OOOX---XXXXXX- O; 9| 25 +28 0:00.328 143865344 438613854 F6 g5 G3 f2 H4 h5 H3 WARNING: missing best score in --OX-O----XXOO--OOOOOXX-OOOOOX--OOOXOXX-OOOOXX-----OOX----X-O--- X; 10| 26 +16 0:00.781 373000998 477594108 e1 H4 g6 H6 h5 G4 b2 WARNING: missing best score in ----X-----XXX----OOOXOOO-OOOXOOO-OXOXOXO-OOXXOOO--OOXO----O--O-- X; 11| 26 +10 0:01.875 1001521843 534144983 d8 E8 g8 H8 f2 G7 b7 WARNING: missing best score in ----O-X------X-----XXXO-OXXXXXOO-XXOOXOOXXOXXXOO--OOOO-O----OO-- O; 12| 27 +06 0:00.750 413469176 551292235 E2 h2 G7 f1 H1 h3 D1 WARNING: missing best score in ---X-------OX--X--XOOXXXXXXOXXXXXXXOOXXXXXXOOOXX--XO---X-------- O; 13| 27 +00 0:01.281 692028689 540225362 A3 f2 E1 f1 C2 b1 B3 WARNING: missing best score in ----OO-----OOO---XXXXOOO--XXOOXO-XXXXXOO--OOOXOO--X-OX-O-----X-- X; 14| 28 -02 0:04.828 2912448931 603241286 d8 B6 d7 A5 b4 A4 a3 WARNING: missing best score in --OOO---XXOO----XXXXOOOOXXXXOX--XXXOXX--XXOOO------OOO-----O---- X; 15| 28 -02 0:06.360 4052342254 637160732 c7 G6 g5 F6 g4 C8 b7 WARNING: missing best score in --------X-X------XXXXOOOOOXOXX--OOOXXXX-OOXXXX--O-OOOX-----OO--- O; 16| 29 +00 0:18.688 11388338287 609393102 G6 h7 E2 f2 H4 g4 D2 WARNING: missing best score in --XXXXX---XXXX---OOOXX---OOXOX---OXXXXX-OOOOOXO----OXX---------- O; 17| 29 +02 0:02.250 1255958600 558203822 H5 h4 H3 d8 C8 c7 E8 WARNING: missing best score in -------------------XXOOO--XXXOOO--XXOXOO-OOOXXXO--OXOO-O-OOOOO-- X; 18| 30 -10 0:03.969 1541251380 388322343 a6 B5 b4 E2 f2 E1 g1 WARNING: missing best score in --XOOO----OOO----OOOXOO--OOOOXO--OXOXXX-OOXXXX----X-XX---------- X; 19| 30 +04 0:03.860 1924334196 498532175 g1 F2 h3 D8 c8 D7 e8 WARNING: missing best score in -----------------------O--OOOOO---OOOOOXOOOOXXXX--XXOOXX--XX-O-X X; 20| 34 +64 0:00.015 955569 63704600 g8 E8 h4 B7 h2 B8 a8 ---+------+-----+--------------+-------------+----------+--------------------- \Documents\eval: 26205061203 nodes in 0:46.219 (566975945 nodes/s). 20 positions; 0 erroneous move; 0 erroneous score; mean absolute score error = 0.000; mean absolute move error = 0.000 === round 3 === Edax version 4.5.6 Oct 28 2026 19:44:25 for Windows copyright 1998 - 2025 Richard Delorme, Toshihiko Okuhara WARNING: missing best score in O--OOOOX-OOOOOOXOOXXOOOXOOXOOOXXOOOOOOXX---OOOOX----O--X-------- X; # | depth|score| time | nodes (N) | N/s | principal variation ---+------+-----+--------------+-------------+----------+--------------------- 1| 20 +38 0:00.031 10391592 335212645 a2 B1 c1 PS b6 C7 a7 WARNING: missing best score in -OOOOO----OOOOX--OOOOOO-XXXXXOO--XXOOX--OOXOXX----OXXO---OOO--O- X; 2| 22 +00 0:00.062 21891771 353093081 h4 A3 a2 G6 g5 H5 f8 WARNING: missing best score in --OOO-------XX-OOOOOOXOO-OOOOXOOX-OOOXXO---OOXOO---OOOXO--OOOO-- X; 3| 22 +06 0:00.093 27800851 298933882 g2 H1 c2 G1 f1 D2 b2 WARNING: missing best score in --XXXXX---XXXX---OOOXX---OOXXXX--OOXXXO-OOOOXOO----XOX----XXXXX- O; 4| 23 -12 0:00.203 84059731 414087345 G3 h6 C7 h4 H5 h3 G2 WARNING: missing best score in --O-X-O---O-XO-O-OOXXXOOOOOOXXXOOOOOXX--XXOOXO----XXXX-----XXX-- O; 5| 23 -14 0:00.078 21732674 278624026 B8 g5 D2 a3 B7 a8 A7 WARNING: missing best score in ---XXXX-X-XXXO--XXOXOO--XXXOXO--XXOXXO---OXXXOO-O-OOOO------OO-- X; 6| 24 +06 0:00.515 255087723 495315967 b2 C1 g5 H4 h6 G4 b1 WARNING: missing best score in ---XXX----OOOX----OOOXX--OOOOXXX--OOOOXX--OXOXXX--XXOO---XXXX-O- X; 7| 24 -08 0:00.157 65403231 416581089 b3 C1 b1 A3 b2 H3 a5 WARNING: missing best score in -OOOOO----OOOO---OOOOX--XXXXXX---OXOOX--OOOXOX----OOXX----XXXX-- O; 8| 25 +04 0:00.047 17119103 364236234 G2 b8 B7 a2 A5 b2 G3 WARNING: missing best score in -----X--X-XXX---XXXXOO--XOXOOXX-XOOXXX--XOOXX-----OOOX---XXXXXX- O; 9| 25 +28 0:00.328 152238555 464141936 F6 g5 G3 f2 H4 h5 H3 WARNING: missing best score in --OX-O----XXOO--OOOOOXX-OOOOOX--OOOXOXX-OOOOXX-----OOX----X-O--- X; 10| 26 +16 0:00.797 378973728 475500286 e1 H4 g6 H6 h5 G4 b2 WARNING: missing best score in ----X-----XXX----OOOXOOO-OOOXOOO-OXOXOXO-OOXXOOO--OOXO----O--O-- X; 11| 26 +10 0:01.828 966026692 528460991 d8 E8 g8 H8 f2 G7 b7 WARNING: missing best score in ----O-X------X-----XXXO-OXXXXXOO-XXOOXOOXXOXXXOO--OOOO-O----OO-- O; 12| 27 +06 0:00.766 420549911 549020772 E2 h2 G7 f1 H1 h3 D1 WARNING: missing best score in ---X-------OX--X--XOOXXXXXXOXXXXXXXOOXXXXXXOOOXX--XO---X-------- O; 13| 27 +00 0:01.125 622289374 553146110 A3 f2 E1 f1 C2 b1 B3 WARNING: missing best score in ----OO-----OOO---XXXXOOO--XXOOXO-XXXXXOO--OOOXOO--X-OX-O-----X-- X; 14| 28 -02 0:04.734 2870577683 606374669 d8 B6 d7 A5 b4 A4 a3 WARNING: missing best score in --OOO---XXOO----XXXXOOOOXXXXOX--XXXOXX--XXOOO------OOO-----O---- X; 15| 28 -02 0:06.297 3969443448 630370565 c7 G6 g5 F6 g4 C8 b7 WARNING: missing best score in --------X-X------XXXXOOOOOXOXX--OOOXXXX-OOXXXX--O-OOOX-----OO--- O; 16| 29 +00 0:18.516 11212318422 605547549 G6 h7 C1 f2 G2 g8 F8 WARNING: missing best score in --XXXXX---XXXX---OOOXX---OOXOX---OXXXXX-OOOOOXO----OXX---------- O; 17| 29 +02 0:02.359 1313842782 556949039 H5 h4 H3 d8 C8 c7 E8 WARNING: missing best score in -------------------XXOOO--XXXOOO--XXOXOO-OOOXXXO--OXOO-O-OOOOO-- X; 18| 30 -10 0:04.079 1581097956 387619013 a6 B5 b4 E2 f2 E1 g1 WARNING: missing best score in --XOOO----OOO----OOOXOO--OOOOXO--OXOXXX-OOXXXX----X-XX---------- X; 19| 30 +04 0:03.829 1920332363 501523208 g1 F2 h3 D8 c8 D7 e8 WARNING: missing best score in -----------------------O--OOOOO---OOOOOXOOOOXXXX--XXOOXX--XX-O-X X; 20| 34 +64 0:00.015 943634 62908933 g8 E8 h4 B7 h2 B8 a8 ---+------+-----+--------------+-------------+----------+--------------------- \Documents\eval: 25912121224 nodes in 0:45.859 (565038950 nodes/s). 20 positions; 0 erroneous move; 0 erroneous score; mean absolute score error = 0.000; mean absolute move error = 0.000