MESON Chess Problem Database
Problem Display
PID: 261856 (7b/4N2p/4p2Q/2Ppp2p/Rn1pk3/1R1NB1p1/4B1b1/1n4K1 w - - 0 1)
Doukhan, Gerard
The Problemist, 2022
#2
9 + 12
SOLUTION
- SOUND
- Tries
- 1.Se1?
- threat
- 2.Qxh7#
- 1...dxe3
- 2.Qxe3#
- 1...Bh3
- 2.Bf3#
- 1...Sd3
- 2.Bxd3#
- 1...d3
- 2.Bxd3#
- 1...Sc3!
- threat
- 1.Sxe5?
- threat
- 2.Qf4#
- 1...Kxe5
- 2.Qf4#
- 1...Bxe5
- 2.Qxh7#
- 1...dxe3
- 2.Qxe3#
- 1...Sd3!
- threat
- 1.Sc8?
- threat
- 2.Sd6#
- 1...Kf5
- 2.Sd6#
- 1...dxe3!
- threat
- 1.Bf2?
- threat
- 2.Qxh7#
- 1...gxf2+
- 2.Sxf2#
- 1...Sxd3
- 2.Qe3#
- 1...Bh3!
- threat
- 1.Se1?
- Keys
- 1.Bxd4!
- threat
- 2.Qe3#
- 1...Kxd4
- 2.Raxb4#
- 1...exd4
- 2.Qf4#
- 1...Sc2
- 2.Qxh7#
- threat
- 1.Bxd4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- Tries
- Try
- S(D);
- Threat
- QAB(H),XP(k)
- Vars
- P(e);OGATE,P_SPINS(d),XB(E)::QAR1(H),XP(e)
- B(b);N_GUARD::B(B)
- S(d);N_GUARD,P_SPINP(e)::B(B),XS(d)
- P(e);P_SPINS(d)::B(B),XP(e)
- Refutation
- S(a);
- Try
- S(D);XP(h)
- Threat
- QAR1(H)
- Vars
- K(f);P-FLIGHT,XS(D)::QAB1(H)
- B(l);SBLOCK,XS(D)::QAB(H),XP(k)
- P(e);OGATE,P_SPINS(d),XB(E)::QAR1(H),XP(e)
- Refutation
- S(d);P_SPINP(e)
- Try
- S(I);
- Threat
- S(I)
- Vars
- K(f);S_FLIGHT::S(I)
- Refutation
- P(e);P_SPINS(d),XB(E)
- Try
- B(E);
- Threat
- QAB(H),XP(k)
- Vars
- P(c);CHECK,XB(E)::S(D),XP(c)
- S(d);P_SPINP(e),XS(D)::QAR1(H)
- Refutation
- B(b);
- Try
- Actual
- B(E);XP(e)
- Threat
- QAR1(H)
- Vars
- K(f);OGATEB,P-FLIGHT,P_SPINS(d),XB(E)::R(F),XS(d)
- P(h);N_GUARD,SBLOCK,XB(E)::QAR1(H)
- S(d);::QAB(H),XP(k)
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).