MESON Chess Problem Database
Problem Display
PID: 110677 (4N2K/3p1pP1/n2Pk3/4b1P1/2P1Q3/1N3n2/8/8 w - - 0 1)
Kovacs, Ferenc
1st Comm., Hietzing, 1932
#2
8 + 6
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Se1
- 2.Sd4#
- 1...Sg1
- 2.Sd4#
- 1...Sd2
- 2.Sd4#
- 1...Sh2
- 2.Sd4#
- 1...Sd4
- 2.Sxd4#
- 1...Sh4
- 2.Sd4#
- 1...Sxg5
- 2.Sd4#
- 1...Sb4
- 2.Sc5#
- 1...Sc5
- 2.Sxc5#
- 1...Sc7
- 2.Sc5#
- 1...Sb8
- 2.Sc5#
- 1...f5
- 2.Qd5#
- 1...f6
- 2.g8Q#
- 2.g8B#
- 1...Se1
- Tries
- 1.Kh7?
- 1...f5
- 2.Qd5#
- 2.g8Q#
- 2.g8B#
- 1...f6
- 2.g8Q#
- 2.g8B#
- 1...Se1
- 2.Sd4#
- 1...Sg1
- 2.Sd4#
- 1...Sd2
- 2.Sd4#
- 1...Sh2
- 2.Sd4#
- 1...Sd4
- 2.Sxd4#
- 1...Sh4
- 2.Sd4#
- 1...Sb4
- 2.Sc5#
- 1...Sc5
- 2.Sxc5#
- 1...Sc7
- 2.Sc5#
- 1...Sb8
- 2.Sc5#
- 1...Sxg5+!
- 1...f5
- 1.Kg8?
- 1...Sxg5
- 2.Sd4#
- 1...Se1
- 2.Sd4#
- 1...Sg1
- 2.Sd4#
- 1...Sd2
- 2.Sd4#
- 1...Sh2
- 2.Sd4#
- 1...Sd4
- 2.Sxd4#
- 1...Sh4
- 2.Sd4#
- 1...Sb4
- 2.Sc5#
- 1...Sc5
- 2.Sxc5#
- 1...Sc7
- 2.Sc5#
- 1...Sb8
- 2.Sc5#
- 1...f5
- 2.Qd5#
- 1...f6!
- 1...Sxg5
- 1.Qxf3?
- 1...Bxd6
- 2.Qf6#
- 1...Ba1
- 2.Qd5#
- 1...Bb2
- 2.Qd5#
- 1...Bh2
- 2.Qd5#
- 2.Qf6#
- 1...Bc3
- 2.Qd5#
- 1...Bg3
- 2.Qd5#
- 2.Qf6#
- 1...Bd4
- 2.Qd5#
- 1...Bf4
- 2.Qd5#
- 1...Bf6
- 2.Qd5#
- 2.Qxf6#
- 1...f5
- 2.Qd5#
- 1...f6
- 2.g8Q#
- 2.g8B#
- 1...Sb4
- 2.Sc5#
- 1...Sc5
- 2.Sxc5#
- 1...Sc7
- 2.Sc5#
- 1...Sb8
- 2.Sc5#
- 1...Bxg7+!
- 1...Bxd6
- 1.Qg6+?
- 1...Bf6
- 2.Qxf6#
- 1...f6
- 2.g8Q#
- 2.g8B#
- 1...fxg6!
- 1...Bf6
- 1.Qxe5+?
- 1...Sxe5
- 2.Sd4#
- 1...Kxe5!
- 1...Sxe5
- 1.g6?
- 1...Se1
- 2.Sd4#
- 1...Sg1
- 2.Sd4#
- 1...Sd2
- 2.Sd4#
- 1...Sh2
- 2.Sd4#
- 1...Sd4
- 2.Sxd4#
- 1...Sh4
- 2.Sd4#
- 1...Sg5
- 2.Sd4#
- 1...Sb4
- 2.Sc5#
- 1...Sc5
- 2.Sxc5#
- 1...Sc7
- 2.Sc5#
- 1...Sb8
- 2.Sc5#
- 1...f5
- 2.Qd5#
- 1...f6
- 2.g8Q#
- 2.g8B#
- 1...fxg6!
- 1...Se1
- 1.Kh7?
- Keys
- 1.c5!
- 1...Sxg5
- 2.Sd4#
- 1...Sxc5
- 2.Sxc5#
- 1...f5
- 2.Qc4#
- 1...f6
- 2.g8Q#
- 2.g8B#
- 1...Se1
- 2.Sd4#
- 1...Sg1
- 2.Sd4#
- 1...Sd2
- 2.Sd4#
- 1...Sh2
- 2.Sd4#
- 1...Sd4
- 2.Sxd4#
- 1...Sh4
- 2.Sd4#
- 1...Sb4
- 2.Sc7#
- 1...Sc7
- 2.Sxc7#
- 1...Sb8
- 2.Sc7#
- 1...Sxg5
- 1.c5!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 4
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- S(a);N_GUARD,XP(D)::S(A)
- S(c);N_GUARD::S(A)
- S(c);N_GUARD::S(A),XS(c)
- P(f);SBLOCK::QAB1(C)
- P(f);N_PINP(F)::P=Q
- Tries
- Try
- K(H);N_SPINP(F),P-FLIGHT
- Vars
- P(f);::P=Q
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- S(c);N_GUARD::S(A)
- S(c);N_GUARD::S(A),XS(c)
- Refutation
- S(a);CHECK,XP(D)
- Try
- K(H);N_SPINP(F),P-FLIGHT
- Vars
- S(a);N_GUARD,XP(D)::S(A)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- S(c);N_GUARD::S(A)
- S(c);N_GUARD::S(A),XS(c)
- P(f);SBLOCK::QAB1(C)
- Refutation
- P(f);
- Try
- Q(C);N_PINB(b),XS(a)
- Vars
- B(b);N_GUARD,N_PINP(F),XP(E)::QAR1(C)
- B(b);::QAB1(C)
- B(b);N_PINP(F)::QAB1(C)
- P(f);SBLOCK::QAB1(C)
- P(f);N_PINP(F)::P=Q
- S(c);N_GUARD::S(A)
- S(c);N_GUARD::S(A),XS(c)
- Refutation
- B(b);CHECK,XP(F)
- Try
- Q(C);CHECK,N_PINB(b)
- Vars
- B(b);N_GUARD,P_SPINB(b)::QAR1(C),XB(b)
- P(f);N_PINP(F),P_SPINP(f)::P=Q
- Refutation
- P(f);XQ(C)
- Try
- Q(C);CHECK,N_SPINP(F),XB(b)
- Vars
- S(a);SBLOCK,XQ(C)::S(A)
- Refutation
- K(d);P-FLIGHT,XQ(C)
- Try
- P(D);
- Vars
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- S(c);N_GUARD::S(A)
- S(c);N_GUARD::S(A),XS(c)
- P(f);SBLOCK::QAB1(C)
- P(f);N_PINP(F)::P=Q
- Refutation
- P(f);XP(D)
- Try
- Actual
- P(B);
- Vars
- S(a);N_GUARD,XP(D)::S(A)
- S(c);XP(B)::S(A),XS(c)
- P(f);SBLOCK::QAB(C)
- P(f);N_PINP(F)::P=Q
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- S(c);N_GUARD::S(G)
- S(c);N_GUARD::S(G),XS(c)
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).