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Up Topic The Rybka Lounge / Test Positions / Sam Loyd - 1856
- - By sensei (*) [fr] Date 2011-08-05 13:54
White to move

Mate in 14

Can you find it with an engine ?

8/8/5N2/8/3K1N1p/1p3knR/1Pp2prb/n1B2b1B w - - 0 1
Parent - - By BOND 007 (*) [at] Date 2011-08-05 14:37
Hello

no problem! ...........

Analysis by Zappa Mexico II:

1.Se4 Lg1 2.Sf6 Lh2 3.Se4
  =  (0.00)   Tiefe: 10/33   00:00:01  436kN
1.Ke5!! Lg1 2.Sg8 Kg4 3.Sh6+ Kf3 4.Sf5 Lh2 5.Se3 Lg1 6.Sxf1 Kg4 7.Lxg2 Kg5 8.Ke6 Sxf1 9.Sd5+ Kg6 10.Txh4 Se3 11.Lxe3 f1D 12.Se7+ Kg7 13.Lh6+ Kh7 14.Lf8#
  +-  (2.09)   Tiefe: 10/33   00:00:01  575kN
  +-  (#14)   Tiefe: 21/59   00:00:28  128mN

regards
Parent - By sensei (*) [fr] Date 2011-08-05 17:34
Hello,

It looks good :cool:

I expected  this :

1.Kc5 Bg1 2.Kb6 Bh2 3.Ka7 Bg1 4.Ka8 Bh2 5.Kb8 Bg1 6.Kc7 Bh2 7.Kd8 Bg1 8.Ke7 Bh2 9.Kf8 Bg1 10.Kg7 Bh2 11.Kh6 Bg1 12.Kg5 Bh2 13.Kxh4 Bg1 14.Rxg3# 1–0
Parent - - By MoKy (**) [sk] Date 2011-10-22 12:05 Edited 2011-10-22 12:35
Mate in 16
corrected version

8/8/5N2/8/5N1p/1p3knR/KPp2prb/n1B2b1B w - - 0 1


1.Ka3 Bg1 .. 6.Ka8 Bh2 .. 15.Kxh4 Bg1 16.Rxg3#
Parent - By MoKy (**) [sk] Date 2011-11-21 22:49
This puzzle seems unsolvable by engines :evil:
- By hsnksc77 (**) [tr] Date 2011-09-16 16:02
good position.
- By hsnksc77 (**) [tr] Date 2011-09-16 19:58
New game, Blitz:10' Microsoft
8/8/5N2/8/3K1N1p/1p3knR/1Pp2prb/n1B2b1B w - - 0 1


Analysis by Naum 3.1:

1.Nd7 Kg4 2.Nf6+ Kf5 3.Nxg2 Kxf6
  -/+  (-1.17)   Depth: 6/17   00:00:03  33kN
1.Nd7 Kg4 2.Nf6+ Kf5 3.Nxg2 Kxf6 4.Rxh2
  -/+  (-1.17)   Depth: 7/17   00:00:05  49kN
1.Nd7 Kg4 2.Nf6+ Kf5 3.Nxg2 Nxh1 4.Nxh4+ Kxf6
  -+  (-1.68)   Depth: 8/22   00:00:06  78kN
1.Ke5 Bg1 2.Ne4 Kg4 3.Nf6+ Kf3
  =  (0.00)   Depth: 8/22   00:00:08  128kN
1.Ke5 Bg1 2.Ne4 Kg4 3.Nf6+ Kf3
  =  (0.00)   Depth: 9/16   00:00:08  132kN
1.Ke5 Bg1 2.N6d5 Kg4 3.Ne3+ Kg5 4.Nxf1 Rh2 5.Nxh2 Bxh2
  +-  (3.19)   Depth: 10/37   00:00:08  366kN
1.Ke5 Bg1 2.N6d5 Kg4 3.Ne3+ Kg5 4.Nxf1 Nxf1 5.Nxg2+ Kg4 6.Rxh4+
  +/-  (0.72)   Depth: 11/35   00:00:09  480kN
1.Ke5 Bg1 2.N6d5 Kg4 3.Ne3+ Kg5 4.Nxf1 Nxf1 5.Nxg2+ Kg4 6.Rxh4+ Kg3
  +/-  (1.05)   Depth: 12/35   00:00:09  626kN
1.Ke5 Bg1 2.N6d5 Kg4 3.Ne3+ Kg5 4.Nxf1 Rh2 5.Nxh2 Bxh2 6.Nd3+ Kg6 7.Nxf2
  +-  (1.80)   Depth: 13/36   00:00:09  894kN
1.Ke5 Bg1 2.N6d5 Kg4 3.Ne3+ Kg5 4.Nxf1 Rh2 5.Nxh2 Bxh2 6.Nd3+ Kg6 7.Nxf2 Nxh1+
  +-  (1.89)   Depth: 14/30   00:00:09  1291kN
1.Ke5 Bg1 2.N6d5 Kg4 3.Ne3+ Kg5 4.Nxf1 Nxf1 5.Nd5+ Kg6 6.Bxg2 Nh2 7.Ne3 f1N 8.Nxf1
  +-  (2.89)   Depth: 15/34   00:00:10  2033kN
1.Ke5 Bg1 2.N6d5 Kg4 3.Ne3+ Kg5 4.Nxf1 Nxf1 5.Nd5+ Kg6 6.Bxg2 Nh2 7.Ne3 f1N 8.Nxf1 Nxf1
  +-  (2.91)   Depth: 16/31   00:00:11  3158kN
1.Ke5 Bg1 2.N6d5 Kg4 3.Ne3+ Kg5 4.Nxf1 Nxf1 5.Nd5+ Kg6 6.Bxg2 Nh2 7.Ne3 f1N 8.Nxf1 Ng4+ 9.Ke6
  +-  (4.09)   Depth: 17/42   00:00:12  5203kN
1.Ke5 Bg1 2.N6d5 Kg4 3.Ne3+ Kg5 4.Nxf1 Nxf1 5.Nd5+ Kg6 6.Bxg2 Nh2 7.Ne3 f1N 8.Nxf1 Ng4+ 9.Ke6 Bf2
  +-  (4.17)   Depth: 18/37   00:00:14  8829kN
1.Ke5 Bg1 2.N6d5 Kg4 3.Ne3+ Kg5 4.Nxf1 Nxf1 5.Nd5+ Kg6 6.Bxg2 Nh2 7.Ne3 f1N 8.Nxf1 Ng4+ 9.Ke6 Bf2 10.Bd5
  +-  (4.09)   Depth: 19/34   00:00:17  14911kN
1.Ke5 Bg1 2.N6d5 Kg4 3.Ne3+ Kg5 4.Nxf1 Nxf1 5.Nd5+ Kg6 6.Bxg2 Nh2 7.Ne3 f1N 8.Nxf1 Ng4+ 9.Ke6 Bf2 10.Bd5 Be1
  +-  (4.17)   Depth: 20/36   00:00:21  26149kN, tb=2
1.Ke5 Bg1 2.N6d5 Kg4 3.Ne3+ Kg5 4.Nxf1 Nxf1 5.Nd5+ Kg6 6.Bxg2 Nh2 7.Ne3 f1N 8.Nxf1 Ng4+ 9.Ke6 Bf2 10.Bd5 Be1 11.Bxb3
  +-  (4.29)   Depth: 21/42   00:00:28  46408kN, tb=4
1.Ke5 Bg1 2.N6d5 Kg4 3.Ne3+ Kg5 4.Nxf1 Rh2 5.Nxh2 Bxh2 6.Nd3+ Kg6 7.Nxf2 Bg1 8.Be4+ Kg7 9.Nd3 Ne2 10.Bg5 Bb6 11.Rxh4 Kf7
  +-  (4.72)   Depth: 22/53   00:00:46  94166kN, tb=22
1.Ke5 Bg1 2.N6d5 Kg4 3.Ne3+ Kg5 4.Nxf1 Rh2 5.Nxh2 Bxh2 6.Nd3+ Kg6 7.Nxf2 Bg1 8.Be4+ Kg7 9.Nd3 Ne2 10.Bg5 Kf7 11.Rxh4 Bd4+ 12.Kd5
  +-  (4.99)   Depth: 23/50   00:01:08  154mN, tb=39
1.Ke5 Bg1 2.N6d5 Kg4 3.Ne3+ Kg5 4.Nxf1 Rh2 5.Nxh2 Bxh2 6.Nd3+ Kg6 7.Nxf2 Bg1 8.Be4+ Kg7 9.Nd3 Ne2 10.Bg5 Kf7 11.Rxh4 Bd4+ 12.Kd5 Bg7
  +-  (4.99)   Depth: 24/43   00:01:46  261mN, tb=75
1.Ke5 Bg1 2.N6d5 Kg4 3.Ne3+ Kg5 4.Nxf1 Rh2 5.Nxh2 Bxh2 6.Nd3+ Kg6 7.Nxf2 Bg1 8.Be4+ Kg7 9.Nd3 Ne2 10.Bg5 Bd4+ 11.Ke6 c1Q 12.Nxc1 Ng3 13.Bd5
  +-  (5.27)   Depth: 25/52   00:02:59  464mN, tb=305
1.Ke5 Bg1 2.Ng8 Bh2 3.Nh6 Bg1 4.Nf5 Bh2 5.Ne3 Bg1 6.Nxf1 Kg4 7.Bxg2 Kg5 8.Nxg3 f1R 9.Nxf1 Kh6 10.Ne2+ Kg7 11.Nxg1 Kg6 12.Rxh4 Kf7 13.Rf4+ Kg6
  +-  (17.00)   Depth: 26/52   00:05:30  885mN, tb=965
1.Ke5 Bg1 2.Ng8 Bh2 3.Nh6 Bg1 4.Nf5 Bh2 5.Ne3 Bg1 6.Nxf1 Kg4 7.Bxg2 Kg5 8.Nxg3 f1R 9.Nxf1 Bb6 10.Nd5+ Kg6 11.Nxb6 Kf7 12.Rxh4 Ke8 13.Ra4 Kd8 14.Rxa1
  +-  (17.00)   Depth: 27/48   00:07:04  1143mN, tb=1287
1.Ke5 Bg1 2.Ng8 Bh2 3.Nh6 Bg1 4.Nf5 Bh2 5.Ne3 Bg1 6.Nxf1 Kg4 7.Bxg2 Kg5 8.Nxg3 f1R 9.Nxf1 Bb6 10.Nd5+ Kg6 11.Nxb6 Kf7 12.Rxh4 Kg6 13.Rg4+ Kf7 14.Bd5+ Ke7
  +-  (#17)   Depth: 28/48   00:08:48  1429mN, tb=2233
1.Ke5 Bg1 2.Ng8 Kg4 3.Nh6+ Kg5 4.Nxg2+ Kg6 5.Nxh4+ Kg7 6.Rxg3+ Kf8 7.Rg8+ Ke7 8.Ng6+ Kd7 9.Nf8+ Kc7 10.Ne6+ Kb6 11.Rb8+ Ka6 12.Nc7+ Ka5 13.Bd2+ Ka4 14.Bc6+ Bb5 15.Bxb5#
  +-  (#15)   Depth: 29/41   00:10:03  1597mN, tb=3125
1.Ke5 Bg1 2.Ng8 Kg4 3.Nh6+ Kg5 4.Nxg2+ Kg6 5.Nxh4+ Kg7 6.Rxg3+ Kf8 7.Rg8+ Ke7 8.Ng6+ Kd7 9.Nf8+ Kc7 10.Ne6+ Kb6 11.Rb8+ Ka6 12.Nc7+ Ka5 13.Bd2+ Ka4 14.Bc6+ Bb5 15.Bxb5#
  +-  (#15)   Depth: 30/34   00:11:28  1791mN, tb=4943
1.Ke5 Bg1 2.Ng8 Kg4 3.Nh6+ Kg5 4.Nxg2+ Kg6 5.Nxh4+ Kg7 6.Rxg3+ Kf8 7.Rg8+ Ke7 8.Ng6+ Kd7 9.Nf8+ Kc7 10.Ne6+ Kb6 11.Rb8+ Ka6 12.Nc7+ Ka5 13.Bd2+ Ka4 14.Bc6+ Bb5 15.Bxb5#
  +-  (#15)   Depth: 31/34   00:13:40  2089mN, tb=9557
1.Ke5 Bg1 2.Ng8 Kg4 3.Nh6+ Kg5 4.Nxg2+ Kg6 5.Nxh4+ Kg7 6.Rxg3+ Kf8 7.Rg8+ Ke7 8.Ng6+ Kd7 9.Nf8+ Kc7 10.Ne6+ Kb6 11.Rb8+ Ka6 12.Nc7+ Ka5 13.Bd2+ Ka4 14.Bc6+ Bb5 15.Bxb5#
  +-  (#15)   Depth: 32/34   00:17:21  2568mN, tb=20372
1.Ke5 Bg1 2.Ng8 Kg4 3.Nh6+ Kg5 4.Nxg2+ Kg6 5.Nxh4+ Kg7 6.Rxg3+ Kf8 7.Rg8+ Ke7 8.Ng6+ Kd7 9.Nf8+ Kc7 10.Ne6+ Kb6 11.Rb8+ Ka6 12.Nc7+ Ka5 13.Bd2+ Ka4 14.Bc6+ Bb5 15.Bxb5#
  +-  (#15)   Depth: 33/35   00:23:16  3338mN, tb=46481
1.Ke5 Bg1 2.Ng8 Kg4 3.Nh6+ Kg5 4.Nxg2+ Kg6 5.Nxh4+ Kg7 6.Rxg3+ Kf8 7.Rg8+ Ke7 8.Ng6+ Kd7 9.Nf8+ Kc7 10.Ne6+ Kb6 11.Rb8+ Ka6 12.Nc7+ Ka5 13.Bd2+ Ka4 14.Bc6+ Bb5 15.Bxb5#
  +-  (#15)   Depth: 34/41   00:34:34  4888mN, tb=109247

(, Microsoft 16.09.2011)

INTEL T6400 2.0 GHZ LAPTOP
- By hsnksc77 (**) [tr] Date 2011-09-16 20:02
New game, Blitz:10' Microsoft
8/8/5N2/8/3K1N1p/1p3knR/1Pp2prb/n1B2b1B w - - 0 1


Analysis by Zappa Mexico II:

1.Ne4 Bg1 2.Nf6 Bh2 3.Ne4
  =  (0.00)   Depth: 9/27   00:00:00  205kN
1.Ne4 Bg1 2.Nf6 Bh2
  =  (0.00)   Depth: 9/33   00:00:00  267kN
1.Ne4 Bg1 2.Nf6 Bh2 3.Ne4
  =  (0.00)   Depth: 10/33   00:00:00  435kN
1.Ke5 Bg1 2.N6d5 Kg4 3.Ne3+ Kg5 4.Nxf1 Rh2 5.Nxh2 Bxh2
  +-  (2.09)   Depth: 10/33   00:00:00  537kN
1.Ke5 Bg1 2.N6d5 Kg4 3.Ne3+ Kg5 4.Nxf1 Rh2 5.Nxh2 Bxh2
  +-  (2.09)   Depth: 10/33   00:00:00  568kN
1.Ke5 Bg1 2.N6d5 Kg4 3.Ne3+ Kg5 4.Nfxg2 Bxg2 5.Nf5+ Kg6 6.Nxh4+ Kf7 7.Bxg2 Ne2 8.Rf3+
  +-  (2.40)   Depth: 11/40   00:00:01  1568kN
1.Ke5 Bg1 2.N6d5 Kg4 3.Ne3+ Kg5 4.Nfxg2 Bxg2 5.Nf5+ Kg6 6.Nxh4+ Kf7 7.Bxg2 Ne2 8.Rf3+
  +-  (2.40)   Depth: 11/40   00:00:02  1632kN
1.Ke5 Bg1 2.N6d5 Kg4 3.Ne3+ Kg5 4.Nxf1 Nxf1 5.Bxg2 Nh2 6.Ne2+ Kg4 7.Ke4 f1Q 8.Bxf1 Nxf1 9.Nxg1
  +-  (2.79)   Depth: 12/43   00:00:04  3613kN
1.Ke5 Bg1 2.N6d5 Kg4 3.Ne3+ Kg5 4.Nxf1 Nxf1 5.Bxg2 Nh2 6.Ne2+ Kg4 7.Ke4 f1Q 8.Bxf1 Nxf1 9.Nxg1
  +-  (2.79)   Depth: 12/43   00:00:04  3754kN
1.Ke5 Bg1 2.N6d5 Kg4 3.Ne3+ Kg5 4.Nxf1 Nxf1 5.Bxg2 Nh2 6.Ne2+ Kg6 7.Bf4 f1B 8.Bxf1 Nxf1 9.Nxg1 Kh5 10.Rc3 Kg4 11.Nh3
  +-  (3.57)   Depth: 13/45   00:00:10  10202kN
1.Ke5 Bg1 2.N6d5 Kg4 3.Ne3+ Kg5 4.Nxf1 Nxf1 5.Bxg2 Nh2 6.Ne2+ Kg6 7.Bf4 f1B 8.Bxf1 Nxf1 9.Nxg1 Kh5 10.Rc3 Kg4 11.Nh3
  +-  (3.57)   Depth: 13/45   00:00:10  10420kN
1.Ke5 Bg1 2.N6d5 Kg4 3.Ne3+ Kg5 4.Nxf1 Nxf1 5.Bxg2 Nh2 6.Ne2+ Kg6 7.Bf4 f1B 8.Bxf1 Nxf1 9.Nxg1 Kh5 10.Rc3 Kg4 11.Nh3
  +-  (3.57)   Depth: 14/47   00:00:14  14566kN
1.Ke5 Bg1 2.N6d5 Kg4 3.Ne3+ Kg5 4.Nxf1 Nxf1 5.Bxg2 Nh2 6.Ne2+ Kg6 7.Bf4 f1B 8.Bxf1 Nxf1 9.Nxg1 Kh5 10.Rc3 Kg4 11.Nh3
  +-  (3.57)   Depth: 14/47   00:00:14  15030kN
1.Ke5 Bg1 2.N6d5 Kg4 3.Ne3+ Kg5 4.Nxf1 Nxf1 5.Bxg2 Nh2 6.Nd5+ Kg6 7.Ke6 f1Q 8.Bxf1 Nxf1 9.Rxh4 Ne3 10.Nxe3 Bf2 11.Rg4+ Kh5 12.Ra4 Kg5 13.Rxa1
  +-  (4.10)   Depth: 15/47   00:00:38  40056kN
1.Ke5 Bg1 2.N6d5 Kg4 3.Ne3+ Kg5 4.Nxf1 Nxf1 5.Bxg2 Nh2 6.Nd5+ Kg6 7.Ke6 f1Q 8.Bxf1 Nxf1 9.Rxh4 Ne3 10.Nxe3 Bf2 11.Rg4+ Kh5 12.Ra4 Kg5 13.Rxa1
  +-  (4.10)   Depth: 15/47   00:00:39  40865kN
1.Ke5 Bg1 2.N6d5 Kg4 3.Ne3+ Kg5 4.Nxf1 Nxf1 5.Bxg2 Nh2 6.Nd5+ Kg6 7.Ke6 f1Q 8.Bxf1 Nxf1 9.Rxh4 Ne3 10.Nxe3 Bf2 11.Rg4+ Kh5 12.Ra4 Kg5 13.Rxa1
  +-  (4.10)   Depth: 16/51   00:00:59  60552kN
1.Ke5 Bg1 2.N6d5 Kg4 3.Ne3+ Kg5 4.Nxf1 Nxf1 5.Bxg2 Nh2 6.Nd5+ Kg6 7.Ke6 f1Q 8.Bxf1 Nxf1 9.Rxh4 Ne3 10.Nxe3 Bf2 11.Rg4+ Kh5 12.Ra4 Kg5 13.Rxa1
  +-  (4.10)   Depth: 16/51   00:01:01  62218kN
1.Ke5 Bg1 2.N6d5 Kg4 3.Ne3+ Kg5 4.Nxf1 Nxf1 5.Bxg2 Nh2 6.Nd5+ Kg6 7.Ke6 f1Q 8.Bxf1 Nxf1 9.Rxh4 Ne3 10.Nxe3 Bf2 11.Rg4+ Kh5 12.Ra4 Kg5 13.Rxa1
  +-  (4.10)   Depth: 17/51   00:01:03  64350kN
1.Ke5 Bg1 2.N6d5 Kg4 3.Ne3+ Kg5 4.Nxf1 Nxf1 5.Bxg2 Nh2 6.Nd5+ Kg6 7.Ke6 f1Q 8.Bxf1 Nxf1 9.Rxh4 Ne3 10.Nxe3 Bf2 11.Rg4+ Kh5 12.Ra4 Kg5 13.Rxa1
  +-  (4.10)   Depth: 17/51   00:01:06  67325kN
1.Ke5 Bg1 2.Ng8 Kg4 3.Nh6+ Kf3 4.Nf5 Bh2 5.Ne3 Bg1 6.Nxf1 Kg4 7.Bxg2 Kg5 8.Nxg3 f1R 9.Bxf1 Bf2 10.Ne4+ Kh6 11.Nxf2 Kh7 12.Bc4 Kg7
  +-  (13.70)   Depth: 18/54   00:02:32  152mN
1.Ke5 Bg1 2.Ng8 Kg4 3.Nh6+ Kf3 4.Nf5 Bh2 5.Ne3 Bg1 6.Nxf1 Kg4 7.Bxg2 Kg5 8.Nxg3 f1R 9.Bxf1 Bf2 10.Ne4+ Kh6 11.Nxf2 Kh7 12.Bc4 Kg7
  +-  (13.70)   Depth: 18/54   00:02:37  157mN
1.Ke5 Bg1 2.Ng8 Kg4 3.Nh6+ Kf3 4.Nf5 Bh2 5.Ne3 Bg1 6.Nxf1 Kg4 7.Bxg2 Kg5 8.Ke6 Nxf1 9.Nd5+ Kg6 10.Rxh4 Ne3 11.Bxe3 Kg7 12.Bd4+ Kg6 13.Be4+ Kg5 14.Bf6#
  +-  (#14)   Depth: 19/54   00:03:08  188mN
1.Ke5 Bg1 2.Ng8 Kg4 3.Nh6+ Kf3 4.Nf5 Bh2 5.Ne3 Bg1 6.Nxf1 Kg4 7.Bxg2 Kg5 8.Ke6 Nxf1 9.Nd5+ Kg6 10.Rxh4 Ne3 11.Bxe3 Kg7 12.Bd4+ Kg6 13.Be4+ Kg5 14.Bf6#
  +-  (#14)   Depth: 19/54   00:03:17  196mN
1.Ke5 Bg1 2.Ng8 Kg4 3.Nh6+ Kf3 4.Nf5 Bh2 5.Ne3 Bg1 6.Nxf1 Kg4 7.Bxg2 Kg5 8.Ke6 Nxf1 9.Nd5+ Kg6 10.Rxh4 Ne3 11.Bxe3 Kg7 12.Bd4+ Kg6 13.Be4+ Kg5 14.Bf6#
  +-  (#14)   Depth: 20/54   00:03:17  196mN

(, Microsoft 16.09.2011)
Up Topic The Rybka Lounge / Test Positions / Sam Loyd - 1856

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