MESON Chess Problem Database
Problem Display
PID: 117280 (8/3p1N2/3K1Q1P/4P2b/5Bkb/7p/5R2/8 w - - 0 1)
Larsen, Lars Aksglade (= Aksglade, Lars)
Match: Denmark - Switzerland, 1946-1947
#2
7 + 5
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Bg3
- 2.Qg5#
- 1...Bg5
- 2.Qxg5#
- 1...Bg3
- Tries
- 1.Bc1?
- threat
- 2.Qf3#
- 2.Qf4#
- 1...Kg3
- 2.Qf4#
- 1...Bxf2
- 2.Qf4#
- 1...Bxf7
- 2.Qf3#
- 1...Bg5
- 2.Qxg5#
- 1...Bg6
- 2.Qf3#
- 1...h2
- 2.Qf3#
- 1...Bg3
- 2.Qg5#
- 1...Bxf6!
- threat
- 1.Bd2?
- threat
- 2.Qf3#
- 2.Qf4#
- 1...Kg3
- 2.Qf4#
- 1...Bxf2
- 2.Qf4#
- 1...Bxf7
- 2.Qf3#
- 1...Bg5
- 2.Qxg5#
- 1...Bg6
- 2.Qf3#
- 1...h2
- 2.Qf3#
- 1...Bg3
- 2.Qg5#
- 1...Bxf6!
- threat
- 1.Be3?
- threat
- 2.Qf3#
- 2.Qf4#
- 1...Kg3
- 2.Qf4#
- 1...Bxf2
- 2.Qf4#
- 1...Bxf7
- 2.Qf3#
- 1...Bg5
- 2.Qxg5#
- 1...Bg6
- 2.Qf3#
- 1...h2
- 2.Qf3#
- 1...Bg3
- 2.Qg5#
- 1...Bxf6!
- threat
- 1.Bg3?
- threat
- 2.Qxh4#
- 2.Qf3#
- 2.Qf4#
- 1...Kxg3
- 2.Qf4#
- 1...Bxg3
- 2.Qg5#
- 1...Bxf7
- 2.Qxh4#
- 1...Bg6
- 2.Qxh4#
- 2.Qf3#
- 1...h2
- 2.Qxh4#
- 1...Bg5
- 2.Qxg5#
- 2.Qf3#
- 1...Bxf6!
- threat
- 1.Bg5?
- threat
- 2.Qf3#
- 2.Qf4#
- 1...Kg3
- 2.Qf4#
- 1...Bxf2
- 2.Qf4#
- 1...Bxg5
- 2.Qxg5#
- 1...Bg6
- 2.Qf3#
- 1...h2
- 2.Qf3#
- 1...Bg3
- 2.Qf3#
- 2.Qf5#
- 1...Bxf7!
- threat
- 1.Qg6+?
- 1...Bg5
- 2.Qxg5#
- 1...Bxg6!
- 1...Bg5
- 1.Bc1?
- Keys
- 1.Bh2!
- threat
- 2.Rf4#
- 2.Qf3#
- 2.Qf4#
- 2.Qf5#
- 1...Bxf2
- 2.Qf4#
- 1...Bxf6
- 2.Rf4#
- 1...Bxf7
- 2.Qf5#
- 1...Bg5
- 2.Qxg5#
- 1...Bg6
- 2.Qf3#
- 1...Bg3
- 2.Qg5#
- threat
- 1.Bh2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- B(c);N_GUARD::QAR1(E)
- B(c);N_GUARD::QAR1(E),XB(c)
- Tries
- Try
- B(B);
- Threat
- DUALS(2)
- Vars
- K(b);P-FLIGHT::QAB1(E)
- B(c);XR(A)::QAR1(E)
- B(d);XS(G)::QAB1(E)
- B(c);N_GUARD::QAR1(E),XB(c)
- B(d);::QAB1(E)
- P(a);::QAB1(E)
- B(c);N_GUARD,P_PINP(C),SBLOCK::QAR1(E)
- Refutation
- B(c);XQ(E)
- Try
- B(B);
- Threat
- DUALS(2)
- Vars
- K(b);P-FLIGHT::QAB1(E)
- B(c);XR(A)::QAR1(E)
- B(d);XS(G)::QAB1(E)
- B(c);N_GUARD::QAR1(E),XB(c)
- B(d);::QAB1(E)
- P(a);::QAB1(E)
- B(c);N_GUARD,P_PINP(C),SBLOCK::QAR1(E)
- Refutation
- B(c);XQ(E)
- Try
- B(B);
- Threat
- DUALS(2)
- Vars
- K(b);P-FLIGHT::QAB1(E)
- B(c);XR(A)::QAR1(E)
- B(d);XS(G)::QAB1(E)
- B(c);N_GUARD::QAR1(E),XB(c)
- B(d);::QAB1(E)
- P(a);::QAB1(E)
- B(c);N_GUARD,P_PINP(C),SBLOCK::QAR1(E)
- Refutation
- B(c);XQ(E)
- Try
- B(B);
- Threat
- DUALS(3)
- Vars
- K(b);P-FLIGHT,XB(B)::QAB1(E)
- B(c);N_GUARD,P_PINP(C),SBLOCK,XB(B)::QAR1(E)
- B(d);XS(G)::QAR1(E),XB(c)
- P(a);::QAR1(E),XB(c)
- Refutation
- B(c);XQ(E)
- Try
- B(B);
- Threat
- DUALS(2)
- Vars
- K(b);P-FLIGHT::QAB1(E)
- B(c);XR(A)::QAR1(E)
- B(c);OGATE,XB(B)::QAR1(E),XB(c)
- B(d);::QAB1(E)
- P(a);::QAB1(E)
- Refutation
- B(d);XS(G)
- Try
- Q(E);CHECK
- Vars
- B(c);N_GUARD,P_SPINB(c)::QAR1(E),XB(c)
- Refutation
- B(d);XQ(E)
- Try
- Actual
- B(B);
- Threat
- DUALS(4)
- Vars
- B(c);XR(A)::QAR1(E)
- B(c);XQ(E)::R1(A)
- B(d);XS(G)::QAB1(E)
- B(c);N_GUARD::QAR1(E),XB(c)
- B(d);::QAB1(E)
- B(c);N_GUARD,P_PINP(C)::QAR1(E)
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).