MESON Chess Problem Database
Problem Display
PID: 844 (2b1R3/3p1Q2/r1pR2P1/2p1bN2/4k3/qBP1p1PK/2P1P1rn/8 w - - 0 1)
ten Cate, Pieter
2nd Prize, British Chess Magazine, 1972
#2
11 + 11
| 3753 | FIDE Album (1971-1973) | 1978 |
| 102 | Probleemblad | 2002 |
SOLUTION
- SOUND
- Sets
- 1...Rxg3+
- 2.Sxg3#
- 1...c4
- 2.Rd4#
- 1...Rxg3+
- Tries
- 1.Sh4?
- threat
- 2.Qc4#
- 2.Qf4#
- 2.Qf5#
- 1...Qxb3
- 2.Qf4#
- 2.Qf5#
- 1...Rf2
- 2.Qc4#
- 1...Qb4
- 2.Qf4#
- 2.Qf5#
- 1...Qa4
- 2.Qf4#
- 2.Qf5#
- 1...Ra4
- 2.Qf4#
- 2.Qf5#
- 1...Sf3
- 2.Qxf3#
- 2.Qf4#
- 2.Qf5#
- 2.exf3#
- 1...c4
- 2.Rd4#
- 2.Qxc4#
- 2.Qf4#
- 2.Qf5#
- 1...Rxg3+!
- threat
- 1.Sh6?
- threat
- 2.Qc4#
- 2.Qf4#
- 2.Qf5#
- 1...Qxb3
- 2.Qf4#
- 2.Qf5#
- 1...Rxe2
- 2.Qf4#
- 2.Qf5#
- 1...Rf2
- 2.Qc4#
- 1...Qb4
- 2.Qf4#
- 2.Qf5#
- 1...Qa4
- 2.Qf4#
- 2.Qf5#
- 1...Ra4
- 2.Qf4#
- 2.Qf5#
- 1...Sf3
- 2.Qxf3#
- 2.Qf4#
- 2.Qf5#
- 2.exf3#
- 1...c4
- 2.Rd4#
- 2.Qxc4#
- 2.Qf4#
- 2.Qf5#
- 1...Rxg3+!
- threat
- 1.Sg7?
- threat
- 2.Qc4#
- 2.Qf4#
- 2.Qf5#
- 1...Qxb3
- 2.Qf4#
- 2.Qf5#
- 1...Rxe2
- 2.Qf4#
- 2.Qf5#
- 1...Rf2
- 2.Qc4#
- 1...Qb4
- 2.Qf4#
- 2.Qf5#
- 1...Qa4
- 2.Qf4#
- 2.Qf5#
- 1...Ra4
- 2.Qf4#
- 2.Qf5#
- 1...Sf3
- 2.Qxf3#
- 2.Qf4#
- 2.Qf5#
- 2.exf3#
- 1...c4
- 2.Rd4#
- 2.Qxc4#
- 2.Qf4#
- 2.Qf5#
- 1...Rxg3+!
- threat
- 1.Rd5?
- threat
- 2.Sd6#
- 2.Rdxe5#
- 2.Rexe5#
- 1...Rxg3+
- 2.Sxg3#
- 1...Rxe2
- 2.Sd6#
- 1...cxd5
- 2.Bxd5#
- 1...Sf3
- 2.Sd6#
- 1...Sg4
- 2.Sd6#
- 1...c4
- 2.Rd4#
- 2.Rdxe5#
- 2.Rexe5#
- 1...d6!
- threat
- 1.Rxc6?
- threat
- 2.Sd6#
- 2.Bd5#
- 1...Rxg3+
- 2.Sxg3#
- 1...Qxb3
- 2.Sd6#
- 1...Rxc6
- 2.Bd5#
- 1...Qa2
- 2.Sd6#
- 1...c4
- 2.Rxc4#
- 1...d5
- 2.Bxd5#
- 1...d6
- 2.Bd5#
- 1...dxc6!
- threat
- 1.Rde6?
- threat
- 2.Sd6#
- 2.Rxe5#
- 1...Rxg3+
- 2.Sxg3#
- 1...Qxb3
- 2.Rxe5#
- 1...Rxe2
- 2.Sd6#
- 1...c4
- 2.Rxe5#
- 1...Sf3
- 2.Sd6#
- 1...Sg4
- 2.Sd6#
- 1...d6
- 2.Sxd6#
- 1...dxe6!
- threat
- 1.Rf6?
- threat
- 2.Sd6#
- 2.Qc4#
- 1...Rxg3+
- 2.Sxg3#
- 1...Qxb3
- 2.Sd6#
- 1...Rxe2
- 2.Sd6#
- 1...Qb4
- 2.Sd6#
- 1...Qa4
- 2.Sd6#
- 1...Ra4
- 2.Sd6#
- 1...Sf3
- 2.Sd6#
- 1...c4
- 2.Qxc4#
- 1...d6
- 2.Qc4#
- 1...d5!
- threat
- 1.Rxd7?
- threat
- 2.Sd6#
- 1...Rxg3+
- 2.Sxg3#
- 1...c4
- 2.Rd4#
- 1...Bxd7!
- threat
- 1.Qd5+?
- 1...Kxf5
- 2.Rxe5#
- 2.Qxe5#
- 1...cxd5!
- 1...Kxf5
- 1.Sh4?
- Keys
- 1.Rd3!
- threat
- 2.Sd6#
- 2.Rxe3#
- 1...Rxg3+
- 2.Sxg3#
- 1...Rxe2
- 2.Sd6#
- 1...Qc1
- 2.Sd6#
- 1...Sf1
- 2.Sd6#
- 1...Sg4
- 2.Sd6#
- 1...c4
- 2.Rxe3#
- 2.Rd4#
- 1...d5
- 2.Rxe3#
- 1...d6
- 2.Rxe3#
- threat
- 1.Rd3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 1
- Sets
- R(a);CHECK,XP(E)::S(G),XR(a)
- P(f);N_GUARD::R1(H)
- Tries
- Try
- S(G);
- Threat
- DUALS(3)
- Vars
- R(a);::QAR2(J)
- Refutation
- R(a);CHECK,XP(E)
- Try
- S(G);
- Threat
- DUALS(3)
- Vars
- R(a);::QAR2(J)
- Refutation
- R(a);CHECK,XP(E)
- Try
- S(G);
- Threat
- DUALS(3)
- Vars
- R(a);::QAR2(J)
- Refutation
- R(a);CHECK,XP(E)
- Try
- R(H);
- Threat
- DUALS(3)
- Vars
- R(a);CHECK,XP(E)::S(G),XR(a)
- R(a);XP(B)::S(G)
- P(i);OGATE,XR(H)::B(C),XP(i)
- S(b);::S(G)
- Refutation
- P(j);P_PINS(G)
- Try
- R(H);XP(i)
- Threat
- DUALS(2)
- Vars
- R(a);CHECK,XP(E)::S(G),XR(a)
- Q(c);XB(C)::S(G)
- R(h);XR(H)::B(C)
- Q(c);::S(G)
- P(f);OGATE::R(H),XP(f)
- P(j);P_PINS(G)::B(C),XP(j)
- P(j);P_PINS(G)::B(C)
- Refutation
- P(j);P_PINS(G),XR(H)
- Try
- R(H);
- Threat
- DUALS(2)
- Vars
- R(a);CHECK,XP(E)::S(G),XR(a)
- Q(c);XB(C)::R1(H),XB(g)
- R(a);XP(B)::S(G)
- P(f);::R1(H),XB(g)
- S(b);::S(G)
- P(j);::S(G),XP(j)
- Refutation
- P(j);N_SPINB(g),XR(H)
- Try
- R(H);
- Threat
- DUALS(2)
- Vars
- R(a);CHECK,XP(E)::S(G),XR(a)
- Q(c);XB(C)::S(G)
- R(a);XP(B)::S(G)
- Q(c);::S(G)
- R(h);::S(G)
- S(b);::S(G)
- P(f);::QAR2(J),XP(f)
- P(j);P_PINS(G)::QAR2(J)
- Refutation
- P(j);P_PINS(G)
- Try
- R(H);XP(j)
- Threat
- S(G)
- Vars
- R(a);CHECK,XP(E)::S(G),XR(a)
- P(f);N_GUARD::R1(H)
- Refutation
- B(k);P_PINS(G),XR(H)
- Try
- Q(J);CHECK
- Refutation
- P(i);XQ(J)
- Try
- Actual
- R(H);
- Threat
- DUALS(2)
- Vars
- R(a);CHECK,XP(E)::S(G),XR(a)
- R(a);XP(B)::S(G)
- Q(c);::S(G)
- S(b);::S(G)
- P(j);P_PINS(G)::R1(H),XP(d)
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).