MESON Chess Problem Database
Problem Display
PID: 109444 (Q7/3p4/8/N1PPP2R/1p1kp3/3nN3/qP1PP3/2R2K2 w - - 0 1)
Strzala, Kazimierz
Komsomolska Iskra, 1964
#2
12 + 6
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qb1
- 2.Sb3#
- 1...Qb3
- 2.Sxb3#
- 1...Qc4
- 2.Rxc4#
- 1...Qxd5
- 2.Qxd5#
- 1...Qa1
- 2.Sb3#
- 1...Qxb2
- 2.Rc4#
- 1...Qa3
- 2.Rc4#
- 1...Qa4
- 2.Rc4#
- 1...Qxa5
- 2.Rc4#
- 1...Sxc5
- 2.Sc2#
- 1...Sxe5
- 2.Sf5#
- 1...b3
- 2.Rc4#
- 1...d6
- 2.Sc6#
- 1...Qb1
- Tries
- 1.Qc6?
- threat
- 2.Sc2#
- 1...Qxb2
- 2.Rc4#
- 1...Qxa5
- 2.Rc4#
- 1...dxc6
- 2.Sxc6#
- 1...Qb1
- 2.Sb3#
- 1...Qb3
- 2.Sxb3#
- 1...Qc4
- 2.Rxc4#
- 1...Qa4
- 2.Rc4#
- 1...b3
- 2.Rc4#
- 1...Se1!
- threat
- 1.Qh8?
- 1...Qxd5
- 2.Sf5#
- 1...Qxb2
- 2.Rc4#
- 1...Qxa5
- 2.Rc4#
- 1...Sxb2
- 2.e6#
- 1...Sxc5
- 2.e6#
- 1...Sxe5
- 2.Qxe5#
- 1...Qc4
- 2.Rxc4#
- 1...Qb1
- 2.Sb3#
- 1...Qb3
- 2.Sxb3#
- 1...Qa1
- 2.Sb3#
- 1...Qa3
- 2.Rc4#
- 1...Qa4
- 2.Rc4#
- 1...Se1
- 2.e6#
- 1...Sf2
- 2.e6#
- 1...Sf4
- 2.e6#
- 1...b3
- 2.Rc4#
- 1...d6
- 2.Sc6#
- 1...Sxc1!
- 1...Qxd5
- 1.e6?
- 1...Qxd5
- 2.Rxd5#
- 2.Qxd5#
- 1...Qxb2
- 2.Rc4#
- 1...Qxa5
- 2.Rc4#
- 1...Sxb2
- 2.Qh8#
- 1...Sxc5
- 2.Sc2#
- 2.Qh8#
- 1...dxe6
- 2.Sc6#
- 1...Qc4
- 2.Rxc4#
- 1...Qb1
- 2.Sb3#
- 1...Qb3
- 2.Sxb3#
- 1...Qa1
- 2.Sb3#
- 1...Qa3
- 2.Rc4#
- 1...Qa4
- 2.Rc4#
- 1...Se1
- 2.Qh8#
- 1...Sf2
- 2.Qh8#
- 1...Sf4
- 2.Qh8#
- 1...Se5
- 2.Sf5#
- 1...b3
- 2.Rc4#
- 1...d6
- 2.Sc6#
- 1...Sxc1!
- 1...Qxd5
- 1.Qc6?
- Keys
- 1.Qa7!
- 1...Qxd5
- 2.Sc2#
- 1...Qxb2
- 2.Rc4#
- 1...Qxa5
- 2.Rc4#
- 1...Sxc1
- 2.c6#
- 1...Sxb2
- 2.c6#
- 1...Sxc5
- 2.Qxc5#
- 1...Sxe5
- 2.c6#
- 1...Qb1
- 2.Sb3#
- 1...Qb3
- 2.Sxb3#
- 1...Qc4
- 2.Rxc4#
- 1...Qa1
- 2.Sb3#
- 1...Qa3
- 2.Rc4#
- 1...Qa4
- 2.Rc4#
- 1...Se1
- 2.c6#
- 1...Sf2
- 2.c6#
- 1...Sf4
- 2.c6#
- 1...b3
- 2.Rc4#
- 1...d6
- 2.Sc6#
- 1...Qxd5
- 1.Qa7!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 3
- ADDED MATES = 5
- REMOVED MATES = 0
- Sets
- Q(a);N_GUARD,P_PINR(A)::S(G)
- Q(a);N_GUARD::S(G),XQ(a)
- Q(a);N_GUARD::R1(A),XQ(a)
- Q(a);OGATE,XP(I)::QAR1(L),XQ(a)
- Q(a);N_GUARD,XP(C)::R1(A)
- Q(a);N_GUARD::R1(A)
- Q(a);N_GUARD,XS(G)::R1(A)
- S(b);SBLOCK,XP(H)::S(F)
- S(b);SBLOCK,XP(J)::S(F)
- P(c);S_CUTQ(a)::R1(A)
- P(f);N_GUARD::S(G)
- Tries
- Try
- Q(L);
- Threat
- S(F)
- Vars
- Q(a);N_GUARD,XP(C)::R1(A)
- Q(a);N_GUARD,XS(G)::R1(A)
- P(f);XQ(L)::S(G),XP(f)
- Q(a);N_GUARD,P_PINR(A)::S(G)
- Q(a);N_GUARD::S(G),XQ(a)
- Q(a);N_GUARD::R1(A),XQ(a)
- Q(a);N_GUARD::R1(A)
- P(c);S_CUTQ(a)::R1(A)
- Refutation
- S(b);
- Try
- Q(L);
- Vars
- Q(a);SBLOCK,XP(I)::S(F)
- Q(a);N_GUARD,XP(C)::R1(A)
- Q(a);N_GUARD,XS(G)::R1(A)
- S(b);N_GUARD,XP(C)::QAB(L)+P(J)
- S(b);N_GUARD,XP(H)::QAB(L)+P(J)
- S(b);OGATE,P_SPINS(b),XP(J)::QAB1(L),XS(b)
- Q(a);N_GUARD::R1(A),XQ(a)
- Q(a);N_GUARD,P_PINR(A)::S(G)
- Q(a);N_GUARD::S(G),XQ(a)
- Q(a);N_GUARD::R1(A)
- S(b);N_GUARD::QAB(L)+P(J)
- P(c);S_CUTQ(a)::R1(A)
- P(f);N_GUARD::S(G)
- Refutation
- S(b);XR(A)
- Try
- P(J);
- Vars
- Q(a);N_GUARD,XP(C)::R1(A)
- Q(a);N_GUARD,XS(G)::R1(A)
- S(b);N_GUARD,XP(C)::QAB(L)
- P(f);N_GUARD,XP(J)::S(G)
- Q(a);N_GUARD::R1(A),XQ(a)
- Q(a);N_GUARD,P_PINR(A)::S(G)
- Q(a);N_GUARD::S(G),XQ(a)
- Q(a);N_GUARD::R1(A)
- S(b);N_GUARD::QAB(L)
- S(b);SBLOCK::S(F)
- P(c);S_CUTQ(a)::R1(A)
- P(f);N_GUARD::S(G)
- Refutation
- S(b);XR(A)
- Try
- Actual
- Q(L);
- Vars
- Q(a);SBLOCK,XP(I)::S(F)
- Q(a);N_GUARD,XP(C)::R1(A)
- Q(a);N_GUARD,XS(G)::R1(A)
- S(b);N_GUARD,XR(A)::QAB(L)+P(H)
- S(b);N_GUARD,XP(C)::QAB(L)+P(H)
- S(b);OGATE,P_SPINS(b),XP(H)::QAB1(L),XS(b)
- S(b);N_GUARD,XP(J)::QAB(L)+P(H)
- Q(a);N_GUARD,P_PINR(A)::S(G)
- Q(a);N_GUARD::S(G),XQ(a)
- Q(a);N_GUARD::R1(A),XQ(a)
- Q(a);N_GUARD::R1(A)
- S(b);N_GUARD::QAB(L)+P(H)
- P(c);S_CUTQ(a)::R1(A)
- 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).