MESON Chess Problem Database
Problem Display
PID: 96979 (2B5/8/1B1p4/1Q1q2P1/3N1kP1/2p2N2/2P4P/3KRR2 w - - 0 1)
Fleck, Ferenc
Problem (Zagreb), 1957
#2
12 + 4
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qa2
- 2.Sg1#
- 2.Sd2#
- 2.Sh4#
- 2.Qf5#
- 1...Qb3
- 2.Sg1#
- 2.Sd2#
- 2.Sh4#
- 2.Qf5#
- 1...Qxf3+
- 2.Rxf3#
- 1...Qc4
- 2.Qf5#
- 1...Qc6
- 2.Qf5#
- 1...Qb7
- 2.Qf5#
- 1...Qf7
- 2.Sg1#
- 2.Sd2#
- 2.Sh4#
- 1...Qa8
- 2.Qf5#
- 1...Qg8
- 2.Sg1#
- 2.Sd2#
- 2.Sh4#
- 2.Qf5#
- 1...Qxd4+
- 2.Sxd4#
- 1...Qf5
- 2.Qxf5#
- 1...Qxg5
- 2.Sg1#
- 2.Sd2#
- 2.Sh4#
- 2.Se5#
- 2.Sxg5#
- 2.Qxg5#
- 1...Qa2
- Tries
- 1.Sg1+?
- 1...Qf3+
- 2.Rxf3#
- 1...Kxg5!
- 1...Qf3+
- 1.Sd2+?
- 1...Qf3+
- 2.Se2#
- 2.Rxf3#
- 1...Kxg5!
- 1...Qf3+
- 1.Sh4+?
- 1...Qf3+
- 2.Rxf3#
- 1...Kxg5!
- 1...Qf3+
- 1.Qa4?
- 1...Qxf3+
- 2.Sxf3#
- 1...Qxd4+
- 2.Qxd4#
- 1...Qxg5
- 2.Sg1#
- 2.Sd2#
- 2.Sh4#
- 2.Se5#
- 2.Se2#
- 2.Sb3#
- 2.Sb5#
- 2.Sf5#
- 2.Sc6#
- 2.Se6#
- 1...Qe6
- 2.Se2#
- 2.Sxe6#
- 1...Qf5
- 2.Se2#
- 2.Sxf5#
- 2.Se6#
- 1...Qa2
- 2.Se2#
- 2.Se6#
- 1...Qb3
- 2.Se2#
- 2.Sxb3#
- 2.Se6#
- 1...Qe4
- 2.Se2#
- 1...Qc6
- 2.Se2#
- 2.Sxc6#
- 2.Se6#
- 1...Qb7
- 2.Se2#
- 2.Sc6#
- 2.Se6#
- 1...Qf7
- 2.Se2#
- 2.Se6#
- 1...Qa8
- 2.Se2#
- 2.Se6#
- 1...Qg8
- 2.Se2#
- 2.Se6#
- 1...Qa5
- 2.Se2#
- 2.Se6#
- 1...Qb5
- 2.Se2#
- 2.Sxb5#
- 2.Se6#
- 1...Qc5
- 2.Se6#
- 1...Qe5
- 2.Se2#
- 2.Se6#
- 1...Qc4!
- 1...Qxf3+
- 1.Qc4?
- 1...Qxf3+
- 2.Sxf3#
- 1...Qxd4+
- 2.Qxd4#
- 1...Qxg5
- 2.Sg1#
- 2.Sd2#
- 2.Sh4#
- 2.Se5#
- 2.Se2#
- 2.Sb3#
- 2.Sb5#
- 2.Sf5#
- 2.Sc6#
- 2.Se6#
- 1...Qe6
- 2.Se2#
- 2.Sxe6#
- 1...Qf5
- 2.Se2#
- 2.Sxf5#
- 2.Se6#
- 1...Qe4
- 2.Se2#
- 1...Qc6
- 2.Se2#
- 2.Sxc6#
- 2.Se6#
- 2.Qf7#
- 1...Qb7
- 2.Se2#
- 2.Sc6#
- 2.Se6#
- 1...Qf7
- 2.Se2#
- 2.Se6#
- 2.Qxf7#
- 1...Qa8
- 2.Se2#
- 2.Sc6#
- 2.Se6#
- 2.Qf7#
- 1...Qg8
- 2.Se2#
- 2.Se6#
- 1...Qa5
- 2.Se2#
- 2.Sb3#
- 2.Sb5#
- 2.Sf5#
- 2.Sc6#
- 2.Se6#
- 1...Qb5
- 2.Se2#
- 2.Sxb5#
- 2.Se6#
- 1...Qc5
- 2.Se6#
- 1...Qe5
- 2.Se2#
- 2.Se6#
- 1...Qxc4!
- 1...Qxf3+
- 1.Sg1+?
- Keys
- 1.Qb4!
- 1...Qxf3+
- 2.Sxf3#
- 1...Qxd4+
- 2.Qxd4#
- 1...Qxg5
- 2.Sg1#
- 2.Sd2#
- 2.Sh4#
- 2.Se5#
- 2.Se2#
- 2.Sb3#
- 2.Sb5#
- 2.Sf5#
- 2.Sc6#
- 2.Se6#
- 1...Qe6
- 2.Se2#
- 2.Sxe6#
- 1...Qf5
- 2.Se2#
- 2.Sxf5#
- 2.Se6#
- 1...Qa2
- 2.Se2#
- 2.Sb3#
- 2.Se6#
- 2.Qxd6#
- 1...Qb3
- 2.Se2#
- 2.Sxb3#
- 2.Se6#
- 2.Qxd6#
- 1...Qc4
- 2.Qxd6#
- 1...Qe4
- 2.Se2#
- 1...Qc6
- 2.Se2#
- 2.Sxc6#
- 2.Se6#
- 1...Qb7
- 2.Se2#
- 2.Sc6#
- 2.Se6#
- 2.Qxd6#
- 1...Qf7
- 2.Se2#
- 2.Se6#
- 2.Qxd6#
- 1...Qa8
- 2.Se2#
- 2.Sc6#
- 2.Se6#
- 2.Qxd6#
- 1...Qg8
- 2.Se2#
- 2.Se6#
- 2.Qxd6#
- 1...Qa5
- 2.Se2#
- 2.Se6#
- 1...Qb5
- 2.Se2#
- 2.Sxb5#
- 2.Se6#
- 1...Qc5
- 2.Se6#
- 1...Qe5
- 2.Se2#
- 2.Se6#
- 1...Qxf3+
- 1.Qb4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 3
- ADDED MATES = 2
- REMOVED MATES = 4
- Sets
- Q(c);CHECK,N_PINS(G),OGATE,P_SPINQ(c),XS(F)::R1(C),XQ(c)
- Q(c);N_PINS(G),OGATE::QAR1(I)
- Q(c);CHECK,XS(G)::R(C)+S(F),XQ(c)
- Q(c);N_PINS(G),OGATE::QAR1(I),XQ(c)
- Tries
- Try
- S(F);CHECK
- Vars
- Q(c);CHECK,N_GUARD,N_PINS(G),P_SPINQ(c)::R1(C),XQ(c)
- Refutation
- K(b);P_SPINQ(c),S_FLIGHT,XP(J)
- Try
- S(F);CHECK,N_SPINS(G)
- Refutation
- K(b);P_SPINQ(c),S_FLIGHT,XP(J)
- Try
- S(F);CHECK
- Vars
- Q(c);CHECK,N_GUARD,N_PINS(G),P_SPINQ(c)::R1(C),XQ(c)
- Refutation
- K(b);P_SPINQ(c),S_FLIGHT,XP(J)
- Try
- Q(I);
- Vars
- Q(c);CHECK,N_PINS(G),P_SPINQ(c),XS(F)::QAR(I)+S(G),XQ(c)
- Q(c);CHECK,OGATE,P_SPINQ(c),XS(G)::QAR2(I),XQ(c)
- Q(c);N_PINS(G)::S(G)
- Q(c);N_PINS(G)::QAR(I)+S(G),DCHECK
- Refutation
- Q(c);N_PINS(G)
- Try
- Q(I);
- Vars
- Q(c);CHECK,N_PINS(G),P_SPINQ(c),XS(F)::QAR(I)+S(G),XQ(c)
- Q(c);CHECK,OGATE,P_SPINQ(c),XS(G)::QAR2(I),XQ(c)
- Q(c);N_PINS(G)::S(G)
- Q(c);N_PINS(G)::QAR(I)+S(G),DCHECK
- Refutation
- Q(c);N_PINS(G),XQ(I)
- Try
- Actual
- Q(I);
- Vars
- Q(c);CHECK,N_PINS(G),P_SPINQ(c),XS(F)::QAR(I)+S(G),XQ(c)
- Q(c);CHECK,OGATE,P_SPINQ(c),XS(G)::QAR2(I),XQ(c)
- Q(c);N_GUARD,N_PINS(G)::QAB(I),XP(d)
- Q(c);N_PINS(G)::S(G)
- Q(c);N_PINS(G)::QAR(I)+S(G),DCHECK
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).