MESON Chess Problem Database
Problem Display
PID: 43523 (qnNKB2B/3p1N2/1Qb3k1/6P1/5p2/b3P1P1/8/4R2R w - - 0 1)
Wostijn, A
De Problemist, 1930
#2
11 + 7
SOLUTION
- SOUND
- Sets
- 1...Bc1
- 2.Se7#
- 1...Bb2
- 2.Se7#
- 1...Be7+
- 2.Sxe7#
- 1...d5
- 2.Qb1#
- 1...d6
- 2.Se7#
- 1...Bc1
- Tries
- 1.Se5+?
- 1...Kxg5
- 2.Rh5#
- 1...Kf5!
- 1...Kxg5
- 1.Sh6+?
- 1...Kxg5
- 2.Rh5#
- 2.exf4#
- 2.gxf4#
- 1...Kh7!
- 1...Kxg5
- 1.e4?
- threat
- 2.Rh6#
- 1...Be7+
- 2.Sxe7#
- 1...Bf8!
- threat
- 1.gxf4?
- threat
- 2.Sfd6#
- 1...Be7+
- 2.Sxe7#
- 1...Bd6
- 2.Sfxd6#
- 1...d5
- 2.Qb1#
- 1...d6
- 2.Se7#
- 1...Kf5!
- threat
- 1.g4?
- threat
- 2.Rh6#
- 1...Be7+
- 2.Sxe7#
- 1...Bf8!
- threat
- 1.Se5+?
- Keys
- 1.exf4!
- threat
- 2.Sfd6#
- 1...Be7+
- 2.Sxe7#
- 1...Kf5
- 2.Sh6#
- 1...Bd6
- 2.Sfxd6#
- 1...d5
- 2.Qb1#
- 1...d6
- 2.Se7#
- threat
- 1.exf4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 2
- Sets
- B(a);N_GUARD::S(H)
- B(a);CHECK,N_GUARD::S(H),XB(a)
- P(e);::QAB(F)
- P(e);N_SPINB(c),S_CUTB(a)::S(H)
- Tries
- Try
- S(G);CHECK
- Vars
- K(d);N_SPINB(c),P-FLIGHT,XP(E)::R1(B)
- Refutation
- K(d);N_SPINB(c),S_FLIGHT
- Try
- S(G);CHECK
- Refutation
- K(d);N_SPINB(c),S_FLIGHT
- Try
- P(C);
- Threat
- R1(B)
- Vars
- B(a);CHECK,N_GUARD::S(H),XB(a)
- Refutation
- B(a);
- Try
- P(D);XP(b)
- Threat
- B(J)+S(G)
- Vars
- B(a);CHECK,N_GUARD::S(H),XB(a)
- B(a);N_SPINB(c)::B(J)+S(G),XB(a)
- P(e);::QAB(F)
- P(e);N_SPINB(c),S_CUTB(a)::S(H)
- Refutation
- K(d);N_SPINB(c),S_FLIGHT
- Try
- P(D);
- Threat
- R1(B)
- Vars
- B(a);CHECK,N_GUARD::S(H),XB(a)
- Refutation
- B(a);
- Try
- Actual
- P(C);XP(b)
- Threat
- B(J)+S(G)
- Vars
- B(a);CHECK,N_GUARD::S(H),XB(a)
- K(d);N_SPINB(c),S_FLIGHT::S(G)
- B(a);N_SPINB(c)::B(J)+S(G),XB(a)
- P(e);::QAB(F)
- P(e);N_SPINB(c),S_CUTB(a)::S(H)
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).