PID: 161796 (8/2p2K2/2PR1R2/2p1k3/4r3/B1p1P3/2B1N3/8 w - - 0 1)
Wigan, TK
Chess, 1956
#2
8 + 5
SOLUTION
SOUND
Sets
1...Rxe3
2.Rfe6#
1...Ra4
2.Rfe6#
1...Rb4
2.Rfe6#
1...Rc4
2.Rfe6#
1...Rd4
2.Rfe6#
1...Rf4
2.exf4#
1...Rg4
2.Rfe6#
1...Rh4
2.Rfe6#
Tries
1.Sxc3?
threat
2.Rd5#
2.Rde6#
1...Rxe3
2.Rd5#
1...Rd4
2.Rde6#
2.Rfe6#
1...cxd6!
1.Sg3?
threat
2.Rfe6#
1...cxd6
2.Rf5#
1...Rf4
2.exf4#
1...Rxe3!
1.Sf4?
threat
2.Sd3#
2.Sg6#
2.Rd5#
2.Rde6#
1...Rxe3
2.Sg6#
2.Rd5#
1...Rxf4
2.exf4#
1...c4
2.Sg6#
2.Rd5#
2.Rde6#
1...Ra4
2.Sg6#
2.Rd5#
2.Rde6#
2.Rfe6#
1...Rb4
2.Sg6#
2.Rd5#
2.Rde6#
2.Rfe6#
1...Rc4
2.Sg6#
2.Rd5#
2.Rde6#
2.Rfe6#
1...Rd4
2.Sg6#
2.Rde6#
2.Rfe6#
1...cxd6!
1.Bxe4?
threat
2.Rde6#
2.Rfe6#
1...cxd6
2.Re6#
1...Kxe4!
1.Bxc5?
1...Rxe3
2.Bd4#
2.Rf5#
2.Rfe6#
1...Ra4
2.Rf5#
2.Rfe6#
1...Rb4
2.Rf5#
2.Rfe6#
1...Rc4
2.Rf5#
2.Rfe6#
1...Rd4
2.Bxd4#
2.Rf5#
2.Rfe6#
2.exd4#
1...Rf4
2.exf4#
1...Rg4
2.Rf5#
2.Rfe6#
1...Rh4
2.Rf5#
2.Rfe6#
1...cxd6!
1.Rd7?
1...Rxe3
2.Rf5#
2.Re6#
1...Ra4
2.Rf5#
2.Re6#
1...Rb4
2.Rf5#
2.Re6#
1...Rc4
2.Rf5#
2.Re6#
1...Rd4
2.Rf5#
2.Re6#
1...Rf4
2.exf4#
1...Rg4
2.Rf5#
2.Re6#
1...Rh4
2.Rf5#
2.Re6#
1...c4!
1.Rd8?
1...Rxe3
2.Rf5#
2.Re6#
1...Ra4
2.Rf5#
2.Re6#
1...Rb4
2.Rf5#
2.Re6#
1...Rc4
2.Rf5#
2.Re6#
1...Rd4
2.Rf5#
2.Re6#
1...Rf4
2.exf4#
1...Rg4
2.Rf5#
2.Re6#
1...Rh4
2.Rf5#
2.Re6#
1...c4!
1.Rh6?
1...Rf4+
2.exf4#
1...Rxe3
2.Rhe6#
1...cxd6
2.Rh5#
1...c4
2.Rh5#
1...Ra4
2.Rhe6#
1...Rb4
2.Rhe6#
1...Rc4
2.Rhe6#
1...Rd4
2.Rhe6#
1...Rg4
2.Rhe6#
1...Rh4
2.Rhe6#
1...Kf5!
Keys
1.Rg6!
1...Rf4+
2.exf4#
1...Kf5
2.Rd5#
1...Rxe3
2.Rge6#
1...cxd6
2.Rg5#
1...c4
2.Rg5#
1...Ra4
2.Rge6#
1...Rb4
2.Rge6#
1...Rc4
2.Rge6#
1...Rd4
2.Rge6#
1...Rg4
2.Rge6#
1...Rh4
2.Rge6#
FEATURES
Static
TYPE = INCOMPLETE_BLOCK
CHANGED MATES = 0
ADDED MATES = 3
REMOVED MATES = 0
Sets
R(b);XP(D)::R1(G)
R(b);::R1(G)
R(b);OGATE,P_PINR(G)::P(D),XR(b)
Tries
Try
S(B);XP(a)
Threat
DUALS(2)
Vars
R(b);XP(D)::R1(F)
Refutation
P(e);XR(F)
Try
S(B);
Threat
R1(G)
Vars
P(e);SBLOCK,XR(F)::R1(G)
R(b);OGATE,P_PINR(G)::P(D),XR(b)
Refutation
R(b);XP(D)
Try
S(B);
Threat
DUALS(4)
Vars
R(b);OGATE,P_PINR(G),XS(B)::P(D),XR(b)
Refutation
P(e);XR(F)
Try
B(A);XR(b)
Threat
DUALS(2)
Vars
P(e);XR(F)::R1(G)
Refutation
K(d);P-FLIGHT,XB(A)
Try
B(C);XP(c)
Vars
R(b);OGATE,P_PINR(G)::P(D),XR(b)
Refutation
P(e);XR(F)
Try
R(F);
Vars
R(b);OGATE,P_PINR(G)::P(D),XR(b)
Refutation
P(c);
Try
R(F);
Vars
R(b);OGATE,P_PINR(G)::P(D),XR(b)
Refutation
P(c);
Try
R(G);
Vars
R(b);CHECK,OGATE::P(D),XR(b)
R(b);XP(D)::R1(G)
P(e);SBLOCK,XR(F)::R(G)
P(c);::R(G)
R(b);::R1(G)
Refutation
K(d);P-FLIGHT,P_SPINR(b)
Actual
R(G);
Vars
R(b);CHECK,OGATE::P(D),XR(b)
K(d);P-FLIGHT,P_SPINR(b)::R(F)
R(b);XP(D)::R1(G)
P(e);SBLOCK,XR(F)::R(G)
P(c);::R(G)
R(b);::R1(G)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
CSS/Javascript (jQuery, Bootstrap & DataTables).