MESON Chess Problem Database
Problem Display
PID: 266259 (8/3B4/bb5n/2p4n/7N/3Pp3/QPP1kPPR/2KR2BN w - - 0 1)
Kozdon, Baldur
2nd HM., 04. FIDE Ty., 1962-1963
#2
13 + 7
SOLUTION
- SOUND
- Sets
- 1...Sg3
- 2.Sxg3#
- 1...Sf4
- 2.Sg3#
- 1...Sf6
- 2.Sg3#
- 1...Sg7
- 2.Sg3#
- 1...Sg4
- 2.Bxg4#
- 1...Sf7
- 2.Bg4#
- 1...Sg8
- 2.Bg4#
- 1...exf2
- 2.Qe6#
- 1...Sg3
- Tries
- 1.Sf3?
- threat
- 2.Re1#
- 1...exf2
- 2.Qe6#
- 1...Ba5!
- threat
- 1.Bc6?
- threat
- 2.Bf3#
- 1...exf2
- 2.Qe6#
- 1...Bb7!
- threat
- 1.Qf7?
- threat
- 2.Qf3#
- 1...Sxf7
- 2.Bg4#
- 1...Sf4
- 2.Sg3#
- 1...Sf6
- 2.Sg3#
- 1...Sf5
- 2.Qxh5#
- 1...Bb7!
- threat
- 1.Qa5?
- threat
- 2.Re1#
- 2.Qe1#
- 1...exf2
- 2.Qd2#
- 1...Bxa5!
- threat
- 1.b3?
- threat
- 2.c3#
- 2.c4#
- 1...Bxd3
- 2.cxd3#
- 1...Bc4
- 2.c3#
- 1...Ba5
- 2.c3#
- 1...c4
- 2.c3#
- 1...exf2!
- threat
- 1.b4?
- threat
- 2.c3#
- 2.c4#
- 1...Bxd3
- 2.cxd3#
- 1...exf2
- 2.Qe6#
- 1...c4
- 2.c3#
- 1...Bc4!
- threat
- 1.c3?
- threat
- 2.b3#
- 2.b4#
- 1...exf2
- 2.Qe6#
- 1...Bc4
- 2.b3#
- 1...Bxd3!
- threat
- 1.c4?
- threat
- 2.b3#
- 2.b4#
- 1...Bxc4
- 2.b3#
- 1...Ba5
- 2.b4#
- 1...exf2!
- threat
- 1.fxe3?
- threat
- 2.g3#
- 2.g4#
- 1...Bc7
- 2.g3#
- 1...Sg3
- 2.Sxg3#
- 1...Sf4
- 2.Sg3#
- 1...Sg4
- 2.Bxg4#
- 1...Bb7!
- threat
- 1.f3?
- threat
- 2.g3#
- 2.g4#
- 1...Bc7
- 2.g3#
- 1...Sg3
- 2.Sxg3#
- 1...Sf4
- 2.Sg3#
- 1...Sg4!
- threat
- 1.f4?
- threat
- 2.g3#
- 2.g4#
- 1...Sxf4
- 2.Sg3#
- 1...Sg3
- 2.Sxg3#
- 1...Sg4
- 2.Bxg4#
- 1...Bb7!
- threat
- 1.g3?
- threat
- 2.fxe3#
- 2.f3#
- 2.f4#
- 1...exf2
- 2.Qe6#
- 1...Bb7
- 2.f3#
- 1...Sg4
- 2.Bxg4#
- 1...Sf4!
- threat
- 1.Sf3?
- Keys
- 1.g4!
- threat
- 2.fxe3#
- 2.f3#
- 2.f4#
- 1...Sxg4
- 2.Bxg4#
- 1...exf2
- 2.Qe6#
- 1...Bb7
- 2.f3#
- 1...Bc7
- 2.f4#
- 1...Sf4
- 2.Sg3#
- threat
- 1.g4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 5
- Sets
- S(d);N_GUARD::S(D),XS(d)
- S(d);N_GUARD::S(D)
- S(g);N_GUARD::B(M),XS(g)
- S(g);N_GUARD::B(M)
- P(b);OGATEB,XP(H)::QAR(E)
- Tries
- Try
- S(L);
- Threat
- R1(B)
- Vars
- P(b);OGATEB,XP(H)::QAR(E)
- Refutation
- B(f);
- Try
- B(M);
- Threat
- B(M)
- Vars
- P(b);OGATEB,XP(H)::QAR(E)
- Refutation
- B(e);
- Try
- Q(E);
- Threat
- QAB1(E)
- Vars
- S(g);N_GUARD,XQ(E)::B(M)
- S(d);N_GUARD::S(D)
- S(g);N_GUARD::QAB(E),XS(d)
- Refutation
- B(e);
- Try
- Q(E);
- Threat
- DUALS(2)
- Vars
- P(b);N_GUARD,XP(H)::QAR1(E)
- Refutation
- B(f);XQ(E)
- Try
- P(F);
- Threat
- DUALS(2)
- Vars
- B(e);OGATE,XP(K)::QAR(E)+P(G),XB(e)
- B(e);::QAR(E)+P(G)
- B(f);::QAR(E)+P(G)
- P(c);::QAR(E)+P(G)
- Refutation
- P(b);XP(H)
- Try
- P(F);
- Threat
- DUALS(2)
- Vars
- B(e);OGATE,XP(K)::QAR(E)+P(G),XB(e)
- P(b);OGATEB,XP(H)::QAR(E)
- P(c);::QAR(E)+P(G)
- Refutation
- B(e);
- Try
- P(G);
- Threat
- DUALS(2)
- Vars
- P(b);OGATEB,XP(H)::QAR(E)
- B(e);::QAR(E)+P(F)
- Refutation
- B(e);XP(K)
- Try
- P(G);
- Threat
- DUALS(2)
- Vars
- B(e);XP(G)::QAR(E)+P(F)
- B(f);::QAR(E)+P(F)
- Refutation
- P(b);XP(H)
- Try
- P(H);XP(b)
- Threat
- DUALS(2)
- Vars
- B(f);::R(J)+P(I)
- S(d);N_GUARD::S(D),XS(d)
- S(d);N_GUARD::S(D)
- S(g);N_GUARD::B(M),XS(g)
- Refutation
- B(e);
- Try
- P(H);
- Threat
- DUALS(2)
- Vars
- B(f);::R(J)+P(I)
- S(d);N_GUARD::S(D),XS(d)
- S(d);N_GUARD::S(D)
- Refutation
- S(g);
- Try
- P(H);
- Threat
- DUALS(2)
- Vars
- S(d);N_GUARD,XP(H)::S(D)
- S(d);N_GUARD::S(D),XS(d)
- S(g);N_GUARD::B(M),XS(g)
- Refutation
- B(e);
- Try
- P(I);
- Threat
- DUALS(3)
- Vars
- P(b);OGATEB,P_SPINP(b),XP(H)::QAR(E)
- B(e);::R(J)+P(H)
- S(g);N_GUARD::B(M),XS(g)
- Refutation
- S(d);
- Try
- Actual
- P(I);
- Threat
- DUALS(3)
- Vars
- S(g);OGATE,XP(I)::B(M),XS(g)
- P(b);OGATEB,P_SPINP(b),XP(H)::QAR(E)
- B(e);::R(J)+P(H)
- B(f);::R(J)+P(H)
- S(d);N_GUARD::S(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).