MESON Chess Problem Database
Problem Display
PID: 78549 (4b1QR/p2kP3/P2P4/1K4n1/6p1/6B1/8/8 w - - 0 1)
Andersson, Gunnar
3rd Prize, Tidskrift for Schack, 1949
#2
7 + 5
| 3310 | 2345 Chess Problems | 1997 |
| 5454 | Near Snap | 2010 |
SOLUTION
- SOUND
- Sets
- 1...Kc8+
- 2.Qxe8#
- 1...Bh5
- 2.Qc8#
- 1...Bg6
- 2.Qc8#
- 1...Bf7
- 2.Qc8#
- 1...Sf3
- 2.Qxg4#
- 1...Sh3
- 2.Qxg4#
- 1...Se4
- 2.Qxg4#
- 1...Se6
- 2.Qxe8#
- 1...Sf7
- 2.Qxg4#
- 1...Sh7
- 2.Qxg4#
- 1...Kc8+
- Tries
- 1.Bh2?
- 1...Kc8+
- 2.Qxe8#
- 1...Sf7
- 2.Qxg4#
- 1...Bh5
- 2.Qc8#
- 1...Bg6
- 2.Qc8#
- 1...Bf7
- 2.Qc8#
- 1...Sf3
- 2.Qxg4#
- 1...Sh3
- 2.Qxg4#
- 1...Se4
- 2.Qxg4#
- 1...Se6
- 2.Qxe8#
- 1...Sh7
- 2.Qxg4#
- 1...g3!
- 1...Kc8+
- 1.Bf4?
- 1...Kc8+
- 2.Qxe8#
- 1...Sf7
- 2.Qxg4#
- 1...Bh5
- 2.Qc8#
- 1...Bg6
- 2.Qc8#
- 1...Bf7
- 2.Qc8#
- 1...Sf3
- 2.Qxg4#
- 1...Sh3
- 2.Qxg4#
- 1...Se4
- 2.Qxg4#
- 1...Se6
- 2.Qxe8#
- 1...Sh7
- 2.Qxg4#
- 1...g3!
- 1...Kc8+
- 1.Be5?
- 1...Kc8+
- 2.Qxe8#
- 1...Sf7
- 2.Qxg4#
- 1...Bh5
- 2.Qc8#
- 1...Bg6
- 2.Qc8#
- 1...Bf7
- 2.Qc8#
- 1...Sf3
- 2.Qxg4#
- 1...Sh3
- 2.Qxg4#
- 1...Se4
- 2.Qxg4#
- 1...Se6
- 2.Qxe8#
- 1...Sh7
- 2.Qxg4#
- 1...g3!
- 1...Kc8+
- 1.Rh6?
- 1...Kc8+
- 2.Qxe8#
- 1...Bh5
- 2.Qd8#
- 1...Bf7
- 2.Qd8#
- 1...Sf3
- 2.Qe6#
- 2.Qxg4#
- 1...Sh3
- 2.Qe6#
- 2.Qxg4#
- 1...Se4
- 2.Qe6#
- 2.Qxg4#
- 1...Se6
- 2.Qxe6#
- 1...Sf7
- 2.Qxg4#
- 1...Sh7
- 2.Qe6#
- 2.Qxg4#
- 1...Bg6!
- 1...Kc8+
- 1.Rh7?
- 1...Kc8+
- 2.Qxe8#
- 1...Sxh7
- 2.Qxg4#
- 1...Sf7
- 2.Qxg4#
- 1...Bg6
- 2.e8Q#
- 1...Bh5
- 2.e8Q#
- 1...Bf7
- 2.e8Q#
- 1...Sf3
- 2.Qxg4#
- 1...Sh3
- 2.Qxg4#
- 1...Se4
- 2.Qxg4#
- 1...Se6!
- 1...Kc8+
- 1.Qc4?
- 1...Bg6
- 2.Rd8#
- 2.Qc8#
- 1...Bh5
- 2.Rd8#
- 2.Qc8#
- 1...Bf7
- 2.Rd8#
- 2.Qc8#
- 1...Sf3
- 2.Qxg4#
- 1...Sh3
- 2.Qxg4#
- 1...Se6
- 2.Qc6#
- 1...Sf7
- 2.Qxg4#
- 1...Sh7
- 2.Qxg4#
- 1...Se4!
- 1...Bg6
- 1.Qg6?
- 1...Kc8+
- 2.Qxe8#
- 1...Bf7
- 2.Rd8#
- 1...Sf3
- 2.Qf5#
- 2.Qxg4#
- 1...Sh3
- 2.Qf5#
- 2.Qxg4#
- 1...Se4
- 2.Qf5#
- 2.Qxg4#
- 1...Se6
- 2.Qxe8#
- 1...Sf7
- 2.Qf5#
- 2.Qxg4#
- 1...Sh7
- 2.Qf5#
- 2.Qxg4#
- 1...Bxg6!
- 1...Kc8+
- 1.Bh2?
- Keys
- 1.Qd5!
- 1...Kc8+
- 2.d7#
- 1...Bg6
- 2.Rd8#
- 1...Bh5
- 2.Rd8#
- 1...Bf7
- 2.Rd8#
- 1...Sf3
- 2.Qf5#
- 1...Sh3
- 2.Qf5#
- 1...Se4
- 2.Qf5#
- 1...Se6
- 2.Qc6#
- 1...Sf7
- 2.Qf5#
- 1...Sh7
- 2.Qf5#
- 1...Kc8+
- 1.Qd5!
This anticipates 102534(1963)
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 10
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- K(d);CHECK,P_SPINB(e),S_FLIGHT::QAR2(F),XB(e)
- B(e);OGATE::QAB1(F)
- S(b);OGATE::QAB(F),XP(a)
- S(b);SBLOCK::QAB1(F),XB(e)
- Tries
- Try
- B(A);
- Vars
- K(d);CHECK,P_SPINB(e),S_FLIGHT::QAR2(F),XB(e)
- S(b);OGATE::QAB(F),XP(a)
- B(e);OGATE::QAB1(F)
- S(b);SBLOCK::QAB1(F),XB(e)
- Refutation
- P(a);
- Try
- B(A);
- Vars
- K(d);CHECK,P_SPINB(e),S_FLIGHT::QAR2(F),XB(e)
- S(b);OGATE::QAB(F),XP(a)
- B(e);OGATE::QAB1(F)
- S(b);SBLOCK::QAB1(F),XB(e)
- Refutation
- P(a);
- Try
- B(A);
- Vars
- K(d);CHECK,P_SPINB(e),S_FLIGHT::QAR2(F),XB(e)
- S(b);OGATE::QAB(F),XP(a)
- B(e);OGATE::QAB1(F)
- S(b);SBLOCK::QAB1(F),XB(e)
- Refutation
- P(a);
- Try
- R(G);
- Vars
- K(d);CHECK,P_SPINB(e),S_FLIGHT::QAR2(F),XB(e)
- B(e);OGATE::QAR1(F)
- S(b);N_GUARD::QAB1(F),XS(b)
- S(b);OGATE::QAB(F),XP(a)
- Refutation
- B(e);
- Try
- R(G);
- Vars
- K(d);CHECK,P_SPINB(e),S_FLIGHT::QAR2(F),XB(e)
- S(b);OGATE,XR(G)::QAB(F),XP(a)
- S(b);OGATE::QAB(F),XP(a)
- B(e);OGATE::P=Q
- Refutation
- S(b);
- Try
- Q(F);
- Vars
- S(b);N_GUARD::QAB(F),XP(a)
- S(b);SBLOCK::QAB1(F)
- Refutation
- S(b);
- Try
- Q(F);
- Vars
- K(d);CHECK,P_SPINB(e),S_FLIGHT::QAR2(F),XB(e)
- B(e);OGATE::R1(G)
- S(b);SBLOCK::QAB1(F),XB(e)
- Refutation
- B(e);XQ(F)
- Try
- Actual
- Q(F);
- Vars
- K(d);CHECK,OGATE,P_SPINB(e),S_FLIGHT::P(D)
- B(e);OGATE::R1(G)
- S(b);N_GUARD::QAB(F)
- S(b);SBLOCK::QAB1(F)
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).