MESON Chess Problem Database
Problem Display
PID: 6572 (b2QR3/B5NK/1r2p3/5B2/q2P1p2/2RPkPp1/3pppP1/N2rbn2 w - - 0 1)
Fleck, Ferenc
2nd HM., 64 Shakhmatnoe obozrenie, 1932
#2
12 + 13
SOLUTION
- SOUND
- Sets
- 1...Qc2
- 2.Sxc2#
- 1...Qb5
- 2.Sc2#
- 1...Qc6
- 2.Sc2#
- 1...Qd7
- 2.Sc2#
- 1...Qxe8
- 2.Sc2#
- 1...Qa3
- 2.Sc2#
- 1...Qb4
- 2.Sc2#
- 1...Qc4
- 2.Sc2#
- 2.dxc4#
- 1...Qxd4
- 2.Sc2#
- 1...Qa5
- 2.Sc2#
- 1...Qa6
- 2.Sc2#
- 1...Qxa7
- 2.Sc2#
- 1...Rb3
- 2.Sc2#
- 1...Rb7
- 2.Rxe6#
- 1...Be4
- 2.dxe4#
- 1...Qc2
- Tries
- 1.Bh3?
- threat
- 2.Sf5#
- 1...Be4+
- 2.dxe4#
- 1...Qxe8
- 2.Sc2#
- 1...Qxa7
- 2.Sc2#
- 1...Qd7
- 2.Sc2#
- 1...Qb5
- 2.Sc2#
- 1...Qa5
- 2.Sc2#
- 1...Rb7
- 2.Rxe6#
- 1...Rb5!
- threat
- 1.Bg4?
- threat
- 2.Sf5#
- 1...Be4+
- 2.dxe4#
- 1...Qxe8
- 2.Sc2#
- 1...Qxa7
- 2.Sc2#
- 1...Qd7
- 2.Sc2#
- 1...Qb5
- 2.Sc2#
- 1...Qa5
- 2.Sc2#
- 1...Rb7
- 2.Rxe6#
- 1...Rb5!
- threat
- 1.Bg6?
- threat
- 2.Sf5#
- 1...Qxe8
- 2.Sc2#
- 1...Qxa7
- 2.Sc2#
- 1...Qd7
- 2.Sc2#
- 1...Qb5
- 2.Sc2#
- 1...Qa5
- 2.Sc2#
- 1...Rb7
- 2.Rxe6#
- 1...Be4
- 2.dxe4#
- 1...Rb5!
- threat
- 1.Rxe6+?
- 1...Be4
- 2.Rxe4#
- 2.dxe4#
- 1...Rxe6!
- 1...Be4
- 1.Bh3?
- Keys
- 1.Bxe6!
- threat
- 2.Sf5#
- 1...Be4+
- 2.dxe4#
- 1...Qxa7
- 2.Sc2#
- 1...Qd7
- 2.Sc2#
- 1...Rb5
- 2.Bd5#
- 1...Qb5
- 2.Sc2#
- 1...Qa5
- 2.Sc2#
- 1...Rb7
- 2.Bd7#
- threat
- 1.Bxe6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 8
- Sets
- Q(i);N_GUARD::S(A),XQ(i)
- Q(i);N_GUARD::S(A)
- Q(i);N_GUARD,P_PINS(I)::S(A)
- Q(i);N_GUARD,N_SPINP(l),XR(L)::S(A)
- Q(i);N_GUARD,XP(F)::S(A)
- Q(i);N_GUARD,P_PINS(I),XB(H)::S(A)
- R(k);S_CUTQ(i)::S(A)
- R(k);N_GUARD,P_PINS(I),S_CUTB(m)::R(L),XP(l)
- B(m);N_SPINP(l),OGATE,P_PINB(G)::R(C)+P(D),XB(m)
- Tries
- Try
- B(G);
- Threat
- S(I)
- Vars
- B(m);CHECK,N_SPINP(l),OGATE::R(C)+P(D),XB(m)
- Q(i);N_GUARD,N_SPINP(l),XR(L)::S(A)
- Q(i);N_GUARD,P_PINS(I),XB(H)::S(A)
- Q(i);N_GUARD,P_PINS(I)::S(A)
- Q(i);N_GUARD::S(A)
- R(k);N_GUARD,P_PINS(I),S_CUTB(m)::R(L),XP(l)
- Refutation
- R(k);
- Try
- B(G);
- Threat
- S(I)
- Vars
- B(m);CHECK,N_SPINP(l),OGATE::R(C)+P(D),XB(m)
- Q(i);N_GUARD,N_SPINP(l),XR(L)::S(A)
- Q(i);N_GUARD,P_PINS(I),XB(H)::S(A)
- Q(i);N_GUARD,P_PINS(I)::S(A)
- Q(i);N_GUARD::S(A)
- R(k);N_GUARD,P_PINS(I),S_CUTB(m)::R(L),XP(l)
- Refutation
- R(k);
- Try
- B(G);
- Threat
- S(I)
- Vars
- Q(i);N_GUARD,N_SPINP(l),XR(L)::S(A)
- Q(i);N_GUARD,P_PINS(I),XB(H)::S(A)
- Q(i);N_GUARD,P_PINS(I)::S(A)
- Q(i);N_GUARD::S(A)
- R(k);N_GUARD,P_PINS(I),S_CUTB(m)::R(L),XP(l)
- B(m);N_SPINP(l),OGATE,P_PINB(G)::R(C)+P(D),XB(m)
- Refutation
- R(k);
- Try
- R(L);CHECK,XP(l)
- Refutation
- R(k);XR(L)
- Try
- Actual
- B(G);XP(l)
- Threat
- S(I)
- Vars
- B(m);CHECK,OGATE::R(C)+P(D),XB(m)
- Q(i);N_GUARD,P_PINS(I),XB(H)::S(A)
- Q(i);N_GUARD,P_PINS(I)::S(A)
- R(k);N_GUARD,S_CUTQ(i)::R(L)+B(G)
- Q(i);N_GUARD::S(A)
- R(k);N_GUARD,P_PINS(I),S_CUTB(m)::R(L)+B(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).