Its play is very impressive, with a more realistic evaluation score than the regular SF, and an ability to find some amazing moves that other versions can't come up with
.
This position was a little more challenging for programs than 37...Rc6, but not much.
[D] r4bk1/1p4r1/p2p1nq1/P2Pp2p/4Pp1n/3N1Pp1/1P2B1PP/2RQB1RK b - -
Houdini 4 Pro
22/63 0:26 +0.58++ 31...Ng4 (403.984.851) 15283
22/63 0:28 +0.42++ 31...Ng4 (434.461.645) 15269
Stockfish 020114
28/38 0:27 +0.20++ 31...Ng4 32.fxg4 hxg4 (278.505.781) 10290
28/38 0:27 +0.12++ 31...Ng4 32.hxg3 fxg3 33.fxg4 hxg4 34.Bxg3 Rh7 35.Bh2 g3 (284.605.678) 10301
(37... Rc6!! one of the most spectacular moves I've seen in a long time)
the programs I tried find this move almost instantly
[D] 2rq1bk1/1p4r1/p2p4/P2Pp2p/Q3Pp1n/3N1PpP/1P1BB3/2RR3K b - -
Rybka 4.1
15.33 0:03 0.00++ 37...Rc6 38.dxc6 Qc8 39.Qb3+ Kh8 40.Nf2 gxf2 41.Bf1 Rg1+ 42.Kh2 Qe6 (2.351.002) 648
15.01 0:04 -0.15++ 37...Rc6 38.dxc6 Qc8 39.Qb3+ Kh8 40.Nf2 gxf2 41.Bf1 Rg1+ 42.Kh2 Qe6 43.Qc3 Rh1+ 44.Kxh1 Qg6 (2.700.668) 669
Houdini 4 Pro
18/48 0:01 -0.02++ 37...Rc6 (20.412.464) 13801
18/48 0:01 -0.18++ 37...Rc6 (23.678.448) 13928
Stockfish 020114
24/34 0:03 -0.08++ 37...Rc6 38.dxc6 Qc8 39.Qc4+ Kh8 40.Bf1 g2+ (37.823.793) 10124
24/34 0:03 -0.16++ 37...Rc6 38.dxc6 Qc8 39.Qc4+ Kh8 40.Bf1 g2+ 41.Bxg2 Rxg2 (38.430.733) 10158
24/34 0:03 -0.28++ 37...Rc6 38.dxc6 Qc8 39.Qc4+ Kh8 40.Bf1 g2+ 41.Bxg2 Rxg2 (39.011.979) 10185
24/34 0:03 -0.46++ 37...Rc6 38.dxc6 Qc8 39.Qc4+ Kh8 40.Bf1 g2+ 41.Bxg2 Rxg2 (40.052.277) 10209
24/34 0:04 -0.73++ 37...Rc6 38.dxc6 Qc8 39.Qc4+ Kh8 40.Bf1 g2+ 41.Bxg2 Rxg2 42.Nxf4 exf4 43.Bc3+ Bg7 44.Bxg7+ Kh7 (40.993.581) 10245
24/34 0:04 -1.14++ 37...Rc6 38.dxc6 Qc8 39.Qc4+ Kh8 40.Bf1 g2+ 41.Bxg2 Rxg2 42.Nxf4 exf4 43.Bc3+ Bg7 44.Bxg7+ Kh7 (42.519.698) 10265
24/34 0:04 -1.75++ 37...Rc6 38.dxc6 Qc8 39.Qc4+ Kh8 40.Bf1 g2+ 41.Bxg2 Rxg2 42.Nxf4 exf4 43.Bc3+ Bg7 44.Bxg7+ Kh7 (45.762.182) 10272
kgburcham