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Up Topic The Rybka Lounge / Test Positions / Charousek positions
- - By user923005 (****) [us] Date 2017-01-24 20:05
Here are 1000 moves by Charousek which are verified as correct by computer analysis
Attachment: Charousek.epd - 1000 Charousek positions (205k)
Parent - - By Vinvin (***) [be] Date 2017-02-28 18:14
Where this positions come from ?

Vincent
Parent - By user923005 (****) [us] Date 2017-02-28 21:14
From his games
Attachment: Charousek.7z - Charousek chess games collection (29k)
Parent - By Peter Grayson (****) [gb] Date 2017-03-01 00:22

> Here are 1000 moves by Charousek which are verified as correct by computer analysis


Perhaps not with precision though. I looked at the first 150 positions and Stockfish 8 finds improvements on 2 of the positions running on my old quad.

PeterG

Position 65: , Charousek

4kr2/p2n3p/5Bp1/1Q1pP3/3P4/2P3b1/P6p/qN5K b - - 0 1


Analysis by Stockfish 8 64: Improves on the given #13 by finding #11

1...a6 2.Qd3 Nxf6 3.exf6 Bd6 4.Qe2+ Kd7 5.Qf1 Qxa2 6.Qe1 Rxf6 7.c4 Qf2 8.Qxf2 Rxf2 9.Nd2 Rxd2 10.cxd5 Bf4 11.d6 Rd1+ 12.Kg2 h1Q+ 13.Kf2 Rd2#
  -+  (-#13)   Depth: 35/44   00:00:33  221MN, tb=1766
1...Rxf6 2.exf6 Qxa2 3.f7+ Kf8 4.Qb4+ Kg7 5.Nd2 Qxd2 6.f8Q+ Nxf8 7.Qe7+ Kg8 8.Qe3 Qxe3 9.Kg2 Qxc3 10.Kh3 h1Q+ 11.Kg4 Qh5#
  -+  (-#11)   Depth: 41/44   00:01:19  538MN, tb=2717

1...Rxf6 2.exf6 Qxa2 3.f7+ Kf8 4.Qb4+ Kg7 5.Nd2 Qxd2 6.f8Q+ Nxf8 7.Qe7+ Kg8 8.Qe3 Qxe3 9.Kg2 Qxc3 10.Kh3 h1Q+ 11.Kg4 Qh5#
  -+  (-#11)   Depth: 68/44   00:04:05  1706MN, tb=40026

Position 128: , Charousek
r4rk1/4qp2/p2p2p1/3Qb3/2p1P1b1/5B2/PP6/RN3K1R b - - 0 1


Analysis by Stockfish 8 64: Improves on 1..Qf6 giving #21 by 1..Bxf3 #18 (may change with even deeper analysis)

1...Bxf3 2.Nd2 Bxh1 3.Ke2 Qh4 4.Rc1 Qg4+ 5.Kf2 Bg3+ 6.Ke3 Bf4+ 7.Kf2 Qg3+ 8.Kf1 Bg2+ 9.Ke2 Bxd2 10.Kxd2 Qf2+ 11.Kc3 Qe3+ 12.Kb4 Rab8+ 13.Ka4 Qxc1 14.Qd4 Rxb2 15.Qf2 Rxf2 16.Ka5 Rb8 17.a4 Qb2 18.Kxa6 Qb6#
  -+  (-#18)   Depth: 39/58   00:34:35  14099MN, tb=34918
1...Bxf3 2.Nd2 Bxh1 3.Ke2 Qh4 4.Rc1 Qg4+ 5.Kf2 Bg3+ 6.Ke3 Bf4+ 7.Kf2 Qg3+ 8.Kf1 Bg2+ 9.Ke2 Bxd2 10.Kxd2 Qf2+ 11.Kc3 Qe3+ 12.Kb4 Rab8+ 13.Ka4 Qxc1 14.Qd4 Rxb2 15.Qf2 Rxf2 16.Ka5 Rb8 17.a4 Qb2 18.Kxa6 Qb6#
  -+  (-#18)   Depth: 40/58   00:35:30  14477MN, tb=35266
1...Bxf3 2.Nd2 Bxh1 3.Ke2 Qh4 4.Rf1 Rab8 5.b3 Qg4+ 6.Kf2 Qg2+ 7.Ke3 c3 8.Rf2 Qg3+ 9.Ke2 c2 10.Rf1 Qg2+ 11.Ke3 Rbc8 12.Qc4 Rxc4 13.bxc4 Bf4+ 14.Kxf4 Qxd2+ 15.Kg3 Qg2+ 16.Kh4 Qxf1 17.e5 c1Q 18.exd6 Qcf4#
  -+  (-#18)   Depth: 41/58   00:42:06  17204MN, tb=48676

1..Qf6 2.Nd2 Bxf3 3.Rh2 Bxe4+ 4.Rf2 Bxd5 5.Rxf6 Bxf6 6.Rc1 Rfc8 7.Kf2 Bxb2 8.Rc2 Bd4+ 9.Kg3 Be5+ 10.Kf2 c3 11.Nb1 Be4 12.Na3 Bxc2 13.Nxc2 Rab8 14.Ke2 Rb2 15.Kd3 Rxc2 16.Kxc2 Rb8 17.Kd3 Rb2 18.a3 Rh2 19.Ke3 c2 20.Ke4 c1Q 21.Kd5 Rh4 22.a4 Rd4#
  -+  (-#21)   Depth: 41/59   00:12:17  5071MN, tb=46926
1..Qf6 2.Nd2 Bxf3 3.Rh2 Bxe4+ 4.Rf2 Bxd5 5.Rxf6 Bxf6 6.Rc1 Rfc8 7.Kf2 Bxb2 8.Rc2 Bd4+ 9.Kg3 Be5+ 10.Kf2 c3 11.Nb1 Be4 12.Na3 Bxc2 13.Nxc2 Rab8 14.Ke2 Rb2 15.Kd3 Rxc2 16.Kxc2 Rb8 17.Kd3 Rb2 18.a3 Rh2 19.Ke3 c2 20.Ke4 c1Q 21.Kd5 Rh4 22.a4 Rd4#
  -+  (-#21)   Depth: 42/59   00:14:53  6150MN, tb=59523
1..Qf6 2.Nd2 Bxf3 3.Rh2 Bxe4+ 4.Rf2 Bxd5 5.Rxf6 Bxf6 6.Rc1 Rfc8 7.Kf2 Bxb2 8.Rc2 Bd4+ 9.Kg3 Be5+ 10.Kf2 c3 11.Nb1 Be4 12.Na3 Bxc2 13.Nxc2 Rab8 14.Ke2 Rb2 15.Kd3 Rxc2 16.Kxc2 Rb8 17.Kd3 Rb2 18.a3 Rh2 19.Ke3 c2 20.Ke4 c1Q 21.Kd5 Rh4 22.a4 Rd4#
  -+  (-#21)   Depth: 43/59   00:19:56  8248MN, tb=98111

Up Topic The Rybka Lounge / Test Positions / Charousek positions

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