Rxf7......?

[rightrook]

[d]rn2k2r/pb1p1p2/1p6/q1ppP2p/2P3pP/P1PB2P1/3QN1P1/R4RK1 w kq - 0 1

Back in 1993, white played Rxf7....!?

Computers show even a better move...a mate in 8....with Qg5..!

CHESS LIFE published this diagram...

Rxf7 does look like a good move at first..

[zullil]

[d]rn2k2r/pb1p1p2/1p6/q1ppP2p/2P3pP/P1PB2P1/3QN1P1/R4RK1 w kq - 0 1

Computers show even a better move...a mate in 8....with Qg5..!

Indeed. Here's from Stockfish-1.6.3 (8 threads):

Code: Select all

Searching: rn2k2r/pb1p1p2/1p6/q1ppP2p/2P3pP/P1PB2P1/3QN1P1/R4RK1 w kq -
infinite: 1 ponder: 0 time: 0 increment: 0 moves to go: 0
 2     +0.77   00:00      224 Qg5 Na6 cxd5 Bxd5 
 3     +1.17   00:00      805 Qg5 Na6 Qf6 
 4     +1.05   00:00     1447 Qg5 Na6 Qf6 Rf8 cxd5 Bxd5 
 4     +1.29   00:00     2105 Qf4 Rf8 Bg6 dxc4 Bxf7+ Kd8 Qxc4 
 5     +1.58   00:00     3048 Qf4 Rf8 Bg6 dxc4 Rad1 
 6     +1.98   00:00     4953 Qf4 Rf8 Bg6 dxc4 Bxh5 Nc6 Bxg4 
 7     +2.51   00:00    16630 Qf4 Rf8 Bg6 dxc4 Bxh5 Nc6 Bxf7+ Kd8 Qh6 Rxf7 Rxf7 
                              Nxe5 
 8     +2.75   00:00    43940 Qf4 Rf8 Bg6 dxc4 Bxh5 Bd5 Bxg4 b5 Qf6 Qb6 Qg7 
 9     +2.63   00:00    75896 Qf4 Rf8 Bg6 Ba6 Bxf7+ Kd8 Qh6 Rxf7 Rxf7 Bxc4 Nf4 
                              Qxc3 Rf8+ Kc7 
10  >  +3.11   00:00   103503 Qf4 dxc4 Bxc4 
11     +2.59   00:00   187876 Qf4 Rf8 Bg6 Ba6 Bxf7+ Kd8 Qh6 Rxf7 Rxf7 Bxc4 Qd6 
                              Kc8 e6 Qa4 Rf8+ Kb7 e7 
11  >  +5.17   00:00   804476 Rxf7 Kxf7 Qf4+ Ke8 Qg5 Na6 Bg6+ Kf8 cxd5 
12     +4.89   00:01    2460k Rxf7 Kd8 e6 Re8 cxd5 c4 Qg5+ Kc8 Bf5 Qxd5 exd7+ 
                              Nxd7 Bxd7+ Qxd7 Rxd7 Kxd7 
12  > +13.41   00:01    3005k Qg5 Na6 Rxf7 Kxf7 Qf6+ Kg8 Qg6+ 
13    +19.31   00:01    7168k Qg5 Qxa3 Rxa3 Nc6 cxd5 Ne7 d6 O-O-O dxe7 Rde8 Qf6 
                              c4 Bxc4 a5 Qxb6 Rxe7 Rxa5 
14  > +38.42   00:02   12010k Qg5 Qxa3 Rxf7 Qxa1+ Kh2 Nc6 Bg6 Qg1+ Nxg1 Rh6 
                              Bxh5 Rg6 Bxg6 
15  >+117.38   00:02   15028k Qg5 Qxa3 Rxf7 Qxa1+ Kh2 Nc6 Bg6 Qg1+ Nxg1 Rh6 
                              Bxh5 Rg6 Bxg6 
16        #8   00:09   69018k Qg5 Qxa3 Rxf7 Qxa1+ Kh2 Nc6 Bg6 Qg1+ Nxg1 Rh6 Qf6 
                              d6 Rf8+ Kd7 Qxd6# 
17        #8   00:17  126053k Qg5 Qxa3 Rxf7 Qxa1+ Kh2 Nc6 Bg6 Qg1+ Nxg1 Rh6 Qf6 
                              d6 Rf8+ Kd7 Qxd6# 
Nodes: 157912148
Nodes/second: 7318201
Best move: Qg5
Ponder move: Qxa3

[rightrook]

Very good...thanks Louis.

I see that it at least takes a look at Rxf7....etc.

[Marc MP]

[d]rn2k2r/pb1p1p2/1p6/q1ppP2p/2P3pP/P1PB2P1/3QN1P1/R4RK1 w kq - 0 1

Back in 1993, white played Rxf7....!?

Computers show even a better move...a mate in 8....with Qg5..!

CHESS LIFE published this diagram...

Rxf7 does look like a good move at first..

Hi Robert,

Rxf7 is not a bad move (+10 score), but it let the chance to black king to run away through the d8 square.... which Qg5 prevent. See what Stockfish thinks of Rxf7:

Code: Select all

00:00:00.8	-5,21	1	5	Rxf7 
00:00:00.8	-5,21	2	57	Rxf7 Kxf7 cxd5 Bxd5 
00:00:00.8	-2,66	3	336	Rxf7 Kxf7 Qg5 dxc4 
00:00:00.8	-3,07	4	1015	Rxf7 Kxf7 Qg5 Kf8 Qf6+ Kg8 
00:00:00.8	0,88	5	2506	Rxf7 Kxf7 Qg5 dxc4 Rf1+ Bf3 Bg6+ Kf8 gxf3 
00:00:00.8	2,10	6	5863	Rxf7 Kxf7 Qg5 dxc4 Rf1+ Bf3 Bg6+ Kg8 Bxh5+ Kf8 gxf3 
00:00:00.9	3,51	7	45155	Rxf7 Rg8 Raf1 Nc6 Bh7 O-O-O Bxg8 Rxg8 Qxd5 
00:00:01.1	3,79	8	95370	Rxf7 Rg8 Raf1 Nc6 e6 O-O-O exd7+ Rxd7 Bf5 Ne5 Bxd7+ Nxd7 cxd5 Qxa3 
00:00:01.1	4,00	9	122536	Rxf7 Rg8 Raf1 Nc6 e6 O-O-O exd7+ Rxd7 Bf5 Ne5 Bxd7+ Nxd7 cxd5 Qxa3 Re7 a5 Rff7 Qa1+ Nc1 
00:00:01.3	4,68	10	215017	Rxf7 dxc4 Qg5 Nc6 Bg6 
00:00:01.8	5,17	11	434066	Rxf7 Kd8 e6 Kc8 e7 Nc6 Qf4 Nxe7 Rxe7 dxc4 Bxc4 Bc6 Rd1 Qxa3 
00:00:03.6	5,85	12	1195910	Rxf7 Rg8 Qf4 Kd8 cxd5 Bxd5 Rf8+ Rxf8 Qxf8+ Kc7 Qd6+ Kc8 Qxd5 c4 Qxa5 bxa5 Bxc4 Nc6 
00:00:05.8	6,74	13	2200357	Rxf7 Kd8 e6 Bc6 cxd5 c4 e7+ Kc7 Qf4+ Kb7 e8Q Qxd5 Qee4 cxd3 Qxd5 Bxd5 Rf5 Bxg2 Kxg2 dxe2 
00:00:18.3	7,95	14	7482601	Rxf7 Kd8 e6 Re8 Bf5 Qa4 cxd5 Ba6 exd7 Nxd7 Rxd7+ Qxd7 Bxd7 Kxd7 Nf4 Re5 Qc2 Bc4 Qh7+ Kd6 
00:00:29.5	9,05	15	11923265	Rxf7 Kd8 e6 Re8 Bf5 Qa4 cxd5 Kc8 exd7+ Nxd7 Bxd7+ Qxd7 Rxd7 Kxd7 Qd3 Rad8 Nf4 Kc7 Qh7+ Kb8 Qxh5 Re4 Qg5 Rd6 h5 
00:00:54.7	9,01	16	23223759	Rxf7 Kd8 e6 Bc6 cxd5 Ba4 d6 Kc8 Be4 Nc6 Rxd7 Kb8 Rc7 Bb5 Rxc6 Qa4 Bc2 
00:01:43.0	9,89	17	44033827	Rxf7 Kd8 e6 Bc6 cxd5 Ba4 d6 Kc8 Be4 Nc6 Rxd7 Kb8 Rc7 a6 Bxc6 Bxc6 Rxc6 Qb5 Rc7 Ra7 a4 Qb3 
00:03:46.0	11,71	18	95614959	Rxf7 Bc8 Qg5 Nc6 Raf1 dxc4 Bg6 
00:06:44.7	10,46	19	168940795	Rxf7 Kd8 e6 Bc6 cxd5 Ba4 d6 Kc8 Be4 Nc6 Rxd7 Kb8 Rc7 a6 e7 c4 Bxc6 Qc5+ Nd4 Qxd6 Rb7+ Kc8 Rxb6 
00:14:35.9	10,46	19	361020193	Rxf7 Kd8 e6 Bc6 cxd5 Ba4 d6 Kc8 Be4 Nc6 Rxd7 Kb8 Rc7 a6 e7 c4 Bxc6 Qc5+ Nd4 Qxd6 Rb7+ Kc8 Rxb6