MESON Chess Problem Database
Problem Display
PID: 45954 (1b3Q2/2p2BN1/1p2RB2/3k1p1q/1p3R1p/1Pr1P3/3rN1PK/3n4 w - - 0 1)
Smedley, Don A
5th Place, Match: Great Britain - USA, 2001-2002
#2
11 + 11
| 56 | The Problemist | 2002 |
SOLUTION
- SOUND
- Sets
- 1...Qxe2
- 2.Rxf5#
- 2.Rxb6#
- 1...Qf3
- 2.Rxb6#
- 1...Qg4
- 2.Rxb6#
- 1...Qxf7
- 2.Rxf5#
- 1...Qg5
- 2.Rxb6#
- 1...Qh6
- 2.Rxf5#
- 2.Rxb6#
- 1...Qh7
- 2.Rxb6#
- 1...Qh8
- 2.Rxf5#
- 2.Rxb6#
- 1...Ra2
- 2.Rd4#
- 1...Rb2
- 2.Rd4#
- 1...Rdc2
- 2.Rd4#
- 1...Rxe2
- 2.Rd4#
- 1...Rd4
- 2.Rxd4#
- 1...Rc4
- 2.bxc4#
- 1...Rc5
- 2.Rd6#
- 2.Qd8#
- 1...Rc6
- 2.Re5#
- 1...c5
- 2.Rd6#
- 1...c6
- 2.Re5#
- 1...Qxe2
- Tries
- 1.Sd4?
- threat
- 2.Re5#
- 1...Rxd4
- 2.Rxd4#
- 1...Rxg2+!
- threat
- 1.Sxh5?
- threat
- 2.Rxf5#
- 2.Rxb6#
- 1...Rxb3
- 2.Rxb6#
- 1...Sxe3
- 2.Rxb6#
- 1...Rc6
- 2.Rxf5#
- 2.Re5#
- 1...b5
- 2.Rxf5#
- 2.Ra6#
- 2.Rb6#
- 1...c5
- 2.Rxb6#
- 2.Rd6#
- 1...c6
- 2.Re4#
- 2.Re5#
- 2.Re8#
- 1...Rxe3!
- threat
- 1.Bd4?
- threat
- 2.Rd6#
- 2.Rg6#
- 2.Qd8#
- 1...Rxd4
- 2.Rxd4#
- 1...Rxb3
- 2.Rd6#
- 2.Rg6#
- 1...Rxe3
- 2.Rd6#
- 2.Qd8#
- 1...Qg6
- 2.Rd6#
- 2.Rxg6#
- 2.Qd8#
- 1...Qg5
- 2.Rxb6#
- 2.Rd6#
- 2.Rf6#
- 2.Rg6#
- 2.Rh6#
- 1...Qh8
- 2.Rxf5#
- 2.Rxb6#
- 2.Rd6#
- 2.Rf6#
- 2.Rg6#
- 2.Rh6#
- 1...Rc6
- 2.Re5#
- 2.Rd6#
- 1...c5
- 2.Rd6#
- 2.Rg6#
- 1...c6
- 2.Re5#
- 2.Rd6#
- 2.Rg6#
- 1...Qxf7!
- threat
- 1.Bxh5?
- threat
- 2.Bf3#
- 2.Rxf5#
- 1...Rxb3
- 2.Bf3#
- 1...Sxe3
- 2.Bf3#
- 1...Rd4
- 2.Rxd4#
- 2.Rxf5#
- 1...Rc4
- 2.Rxf5#
- 2.bxc4#
- 1...Sf2
- 2.Rxf5#
- 1...c5
- 2.Bf3#
- 1...c6
- 2.Bf3#
- 1...Rxe3!
- threat
- 1.Be8?
- threat
- 2.Re5#
- 1...Qxe8
- 2.Rxf5#
- 1...Rxe3
- 2.Bc6#
- 1...c5
- 2.Bc6#
- 1...c6!
- threat
- 1.Rc4?
- threat
- 2.Sf4#
- 2.Re5#
- 2.Rd6#
- 2.Qd8#
- 1...c5+
- 2.Rd6#
- 1...c6+
- 2.Re5#
- 2.Rd6#
- 1...Qxe2
- 2.Ree4#
- 2.Re5#
- 2.Rxb6#
- 2.Rec6#
- 2.Rd6#
- 2.Re8#
- 2.Qd8#
- 1...Qxf7
- 2.Sf4#
- 2.Re5#
- 1...Rxe2
- 2.Rd4#
- 2.Re5#
- 2.Rd6#
- 2.Qd8#
- 1...Rxb3
- 2.Re5#
- 2.Rd6#
- 1...Qf3
- 2.Ree4#
- 2.Re5#
- 2.Rxb6#
- 2.Rec6#
- 2.Rd6#
- 2.Re8#
- 2.Qd8#
- 1...Qg4
- 2.Ree4#
- 2.Re5#
- 2.Rxb6#
- 2.Rec6#
- 2.Rd6#
- 2.Re8#
- 2.Qd8#
- 1...Qg5
- 2.Ree4#
- 2.Re5#
- 2.Rxb6#
- 2.Rec6#
- 2.Rd6#
- 2.Re8#
- 2.Qd8#
- 1...Qh6
- 2.Ree4#
- 2.Re5#
- 2.Rxb6#
- 2.Rec6#
- 2.Rd6#
- 2.Re8#
- 2.Qd8#
- 1...Qh8
- 2.Sf4#
- 2.Ree4#
- 2.Re5#
- 2.Rxb6#
- 2.Rec6#
- 2.Rd6#
- 2.Re8#
- 1...Rd4
- 2.Rxd4#
- 2.Re5#
- 2.Qd8#
- 1...f4
- 2.Sxf4#
- 2.Re5#
- 2.Rd6#
- 2.Qd8#
- 2.e4#
- 1...Rxc4!
- threat
- 1.Rfe4?
- threat
- 2.Sf4#
- 2.R4e5#
- 1...c6+
- 2.R6e5#
- 1...Qxe2
- 2.R4e5#
- 1...Rxe2
- 2.Rd4#
- 2.R4e5#
- 1...Rxb3
- 2.Sf4#
- 1...Rxe3
- 2.Sf4#
- 1...fxe4
- 2.Sf4#
- 1...Qf3
- 2.R4e5#
- 1...Qg4
- 2.R4e5#
- 1...Qg5
- 2.R4e5#
- 1...Qh6
- 2.R4e5#
- 1...f4
- 2.Sxf4#
- 1...c5+!
- threat
- 1.Qxb4?
- threat
- 2.Rd6#
- 1...Qxf7
- 2.Rxf5#
- 1...Rc5
- 2.Qxd2#
- 1...c5!
- threat
- 1.Sd4?
- Keys
- 1.Rxb4!
- threat
- 2.Sf4#
- 1...c5+
- 2.Rd6#
- 1...c6+
- 2.Re5#
- 1...Qxe2
- 2.Rexb6#
- 1...Rxe2
- 2.Rd4#
- 1...Qf3
- 2.Rexb6#
- 1...Qg4
- 2.Rexb6#
- 1...Qg5
- 2.Rexb6#
- 1...Qh6
- 2.Rexb6#
- 1...Rd4
- 2.Rxd4#
- 1...Rc4
- 2.bxc4#
- 1...f4
- 2.Sxf4#
- 2.e4#
- threat
- 1.Rxb4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 6
- Sets
- Q(h);N_GUARD::B(I)+R(G),XP(i)
- Q(h);N_GUARD,XB(I)::R(F),XP(g)
- R(b);N_GUARD::R1(F)
- R(b);N_GUARD,P_PINP(B),XS(A)::R1(F)
- R(b);N_GUARD::R1(F),XR(b)
- R(c);OGATE::P(D),XR(c)
- R(c);SBLOCK::B(I)+R(G),DCHECK
- P(j);P_PINR(F),SBLOCK::B(I)+R(G),DCHECK
- Tries
- Try
- S(A);P_SPINP(B)
- Threat
- B(I)+R(G),DCHECK
- Vars
- R(b);N_PINP(B),OGATE,XS(A)::R1(F),XR(b)
- Refutation
- R(b);CHECK,XP(B)
- Try
- S(J);XQ(h)
- Threat
- DUALS(2)
- Vars
- R(c);XP(D)::B(I)+R(G),XP(i)
- S(a);XP(E)::B(I)+R(G),XP(i)
- Refutation
- R(c);XP(E)
- Try
- B(H);
- Threat
- DUALS(3)
- Vars
- R(b);OGATE,XB(H)::R1(F),XR(b)
- Refutation
- Q(h);XB(I)
- Try
- B(I);XQ(h)
- Threat
- DUALS(2)
- Vars
- R(c);XP(D)::B(I)
- S(a);XP(E)::B(I)
- S(a);::R(F),XP(g)
- P(j);P_PINR(F)::B(I)
- Refutation
- R(c);XP(E)
- Try
- B(I);
- Threat
- R1(G)
- Vars
- Q(h);N_GUARD,XB(I)::R(F),XP(g)
- R(c);N_GUARD,XP(E)::B(I)
- P(j);P_PINR(F),S_CUTR(c)::B(I)
- Refutation
- P(j);P_PINR(F)
- Try
- R(F);
- Threat
- DUALS(4)
- Vars
- P(j);CHECK::B(I)+R(G),DCHECK
- Refutation
- R(c);XR(F)
- Try
- R(F);
- Threat
- DUALS(2)
- Vars
- P(j);CHECK,SBLOCK::B(I)+R(G),DCHECK
- Q(h);P_PINP(B),XS(A)::R1(F)
- R(c);XP(D)::S(A)
- R(c);XP(E)::S(A)
- P(g);XR(F)::S(A)
- Q(h);::R1(F)
- P(g);::S(A),XP(g)
- Refutation
- P(j);CHECK
- Try
- Q(K);XP(d)
- Threat
- B(I)+R(G),DCHECK
- Vars
- Q(h);N_GUARD,XB(I)::R(F),XP(g)
- R(c);OGATE,SBLOCK::QAR(K),XR(b)
- Refutation
- P(j);P_PINR(F)
- Try
- Actual
- R(F);XP(d)
- Threat
- S(A)
- Vars
- P(j);CHECK,SBLOCK::B(I)+R(G),DCHECK
- Q(h);N_GUARD,P_PINP(B),XS(A)::B(I)+R(G),XP(i)
- R(b);N_GUARD,P_PINP(B),XS(A)::R1(F)
- Q(h);N_GUARD::B(I)+R(G),XP(i)
- R(b);N_GUARD::R1(F),XR(b)
- R(c);OGATE::P(D),XR(c)
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).