MESON Chess Problem Database
Problem Display
PID: 219492 (Bb3KQB/1pRpRp2/N1PpP3/pP1k1p2/8/1P1bP3/5N2/8 w - - 0 1)
Segers, Marcel
2nd Prize, Schach-Report, 1991
#2
13 + 9
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Bc4
- 2.Qg2#
- 1...Bxb5
- 2.Qg2#
- 1...bxa6
- 2.cxd7#
- 1...b6
- 2.cxd7#
- 1...f6
- 2.exd7#
- 1...Bc4
- Tries
- 1.Bxb7?
- threat
- 2.cxd7#
- 1...Bxb5
- 2.Qg2#
- 1...dxc6
- 2.Bxc6#
- 1...f6
- 2.exd7#
- 1...dxe6!
- threat
- 1.Qxf7?
- threat
- 2.exd7#
- 1...bxa6
- 2.cxd7#
- 1...dxe6
- 2.Qxe6#
- 1...dxc6!
- threat
- 1.cxd7?
- threat
- 2.Bxb7#
- 1...Bxb5
- 2.Qg2#
- 1...f6!
- threat
- 1.Bxb7?
- Keys
- 1.Sd1!
- threat
- 2.Sc3#
- 1...Ke4
- 2.Qg2#
- 1...bxa6
- 2.cxd7#
- 1...f6
- 2.exd7#
- threat
- 1.Sd1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 3
- Sets
- B(a);N_GUARD::QAB(L)
- B(a);N_GUARD,XP(D)::QAB(L)
- P(f);XS(E)::B(J)+P(F),XP(g)
- P(f);::B(J)+P(F),XP(g)
- P(h);::QAB(L)+P(G),XP(g)
- Tries
- Try
- B(J);XP(f)
- Threat
- B(J)+P(F),XP(g)
- Vars
- B(a);N_GUARD,XP(D)::QAB(L)
- P(g);OGATE,P_SPINP(g),XP(F)::B(J),XP(g)
- P(h);::QAB(L)+P(G),XP(g)
- Refutation
- P(g);XP(G)
- Try
- Q(L);XP(h)
- Threat
- QAB(L)+P(G),XP(g)
- Vars
- P(f);XS(E)::B(J)+P(F),XP(g)
- P(g);OGATE,P_SPINP(g),XP(G)::QAB1(L),XP(g)
- Refutation
- P(g);XP(F)
- Try
- P(F);P_PINP(f),XP(g)
- Threat
- B(J),XP(f)
- Vars
- B(a);N_GUARD,XP(D)::QAB(L)
- Refutation
- P(h);
- Try
- Actual
- S(A);
- Threat
- S(A)
- Vars
- K(c);S_FLIGHT::QAB(L)
- P(f);XS(E)::B(J)+P(F),XP(g)
- P(h);::QAB(L)+P(G),XP(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).