MESON Chess Problem Database
Problem Display
PID: 189347 (8/4p3/2Np2KB/R6N/4k3/2r3P1/2P3P1/bB1n1R2 w - - 0 1)
Kozdon, Baldur
Schweizerische Schachzeitung, 1972
#2
10 + 6
SOLUTION
- SOUND
- Sets
- 1...Rxc2
- 2.Bxc2#
- 1...Ra3
- 2.c3#
- 1...Rb3
- 2.cxb3#
- 1...Rd3
- 2.cxd3#
- 1...Re3
- 2.Rf4#
- 1...Rf3
- 2.gxf3#
- 1...Rxg3+
- 2.Sxg3#
- 1...Rc4
- 2.c3#
- 1...Rc5
- 2.c4#
- 1...Rxc6
- 2.c3#
- 1...Se3
- 2.Rf4#
- 1...e5
- 2.Sf6#
- 1...e6
- 2.Sf6#
- 1...Rxc2
- Tries
- 1.Bc1?
- threat
- 2.Rf4#
- 1...Rxg3+
- 2.Sxg3#
- 1...Rxc2
- 2.Bxc2#
- 1...Rc5
- 2.c4#
- 1...Rf3
- 2.gxf3#
- 1...e5
- 2.Sf6#
- 1...Sf2!
- threat
- 1.Bd2?
- threat
- 2.Rf4#
- 1...Rxg3+
- 2.Sxg3#
- 1...Rxc2
- 2.Bxc2#
- 1...Rc5
- 2.c4#
- 1...Rf3
- 2.gxf3#
- 1...e5
- 2.Sf6#
- 1...Sf2!
- threat
- 1.Re1+?
- 1...Re3
- 2.c3#
- 2.c4#
- 1...Se3!
- 1...Re3
- 1.Rf6?
- threat
- 2.Re6#
- 1...Rxg3+
- 2.Sxg3#
- 1...Rxc2
- 2.Bxc2#
- 1...Rxc6
- 2.c3#
- 1...exf6
- 2.Sxf6#
- 1...Rc5
- 2.c4#
- 1...Ra3
- 2.c3#
- 1...Rb3
- 2.cxb3#
- 1...Rd3
- 2.cxd3#
- 1...Re3
- 2.Rf4#
- 1...Rf3
- 2.gxf3#
- 1...Rc4
- 2.c3#
- 1...e6
- 2.Rxe6#
- 1...e5!
- threat
- 1.Bc1?
- Keys
- 1.Rf7!
- threat
- 2.Rxe7#
- 1...Rxg3+
- 2.Sxg3#
- 1...Rxc2
- 2.Bxc2#
- 1...Rxc6
- 2.c3#
- 1...Rc5
- 2.c4#
- 1...Ra3
- 2.c3#
- 1...Rb3
- 2.cxb3#
- 1...Rd3
- 2.cxd3#
- 1...Re3
- 2.Rf4#
- 1...Rf3
- 2.gxf3#
- 1...Rc4
- 2.c3#
- 1...e5
- 2.Sf6#
- 1...e6
- 2.Sf6#
- threat
- 1.Rf7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 1
- Sets
- R(c);OGATE,P_SPINR(c),XP(C)::B(A),XR(c)
- R(c);OGATE::B(A)+P(C)
- R(c);OGATE::B(A)+P(C),XR(c)
- R(c);OGATE::P(C),XR(c)
- R(c);SBLOCK::R1(B)
- R(c);OGATE::P(D),XR(c)
- R(c);CHECK,XP(E)::S(G),XR(c)
- R(c);OGATE,XS(H)::B(A)+P(C)
- S(b);SBLOCK::R1(B)
- P(f);N_GUARD::S(G)
- Tries
- Try
- B(J);
- Threat
- R1(B)
- Vars
- R(c);CHECK,XP(E)::S(G),XR(c)
- R(c);OGATE,P_SPINR(c),XP(C)::B(A),XR(c)
- R(c);OGATE::B(A)+P(C)
- R(c);OGATE::P(D),XR(c)
- P(f);N_GUARD::S(G)
- Refutation
- S(b);
- Try
- B(J);
- Threat
- R1(B)
- Vars
- R(c);CHECK,XP(E)::S(G),XR(c)
- R(c);OGATE,P_SPINR(c),XP(C)::B(A),XR(c)
- R(c);OGATE::B(A)+P(C)
- R(c);OGATE::P(D),XR(c)
- P(f);N_GUARD::S(G)
- Refutation
- S(b);
- Try
- R(B);CHECK
- Refutation
- S(b);P_SPINS(b)
- Try
- R(B);
- Threat
- R(B)
- Vars
- R(c);CHECK,XP(E)::S(G),XR(c)
- R(c);OGATE,P_SPINR(c),XP(C)::B(A),XR(c)
- R(c);OGATE,XS(H)::B(A)+P(C)
- P(f);XR(B)::S(G),XP(f)
- R(c);OGATE::B(A)+P(C)
- R(c);OGATE::B(A)+P(C),XR(c)
- R(c);OGATE::P(C),XR(c)
- R(c);SBLOCK::R1(B)
- R(c);OGATE::P(D),XR(c)
- P(f);::R(B),XP(f)
- Refutation
- P(f);
- Try
- Actual
- R(B);
- Threat
- R(B),XP(f)
- Vars
- R(c);CHECK,XP(E)::S(G),XR(c)
- R(c);OGATE,P_SPINR(c),XP(C)::B(A),XR(c)
- R(c);OGATE,XS(H)::B(A)+P(C)
- R(c);OGATE::B(A)+P(C)
- R(c);OGATE::B(A)+P(C),XR(c)
- R(c);OGATE::P(C),XR(c)
- R(c);SBLOCK::R1(B)
- R(c);OGATE::P(D),XR(c)
- P(f);N_GUARD::S(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).