MESON Chess Problem Database
Problem Display
PID: 155928 (3Q4/B7/K1Bp1r2/1p1pPP2/4k3/4N1qN/4P3/5R2 w - - 0 1)
Robert, Philippe
Die Schwalbe, 2015
#2
10 + 6
SOLUTION
- SOUND
- Sets
- 1...Qxe5
- 2.Sg5#
- 1...dxe5
- 2.Qxd5#
- 1...Qxe5
- Tries
- 1.Rf4+?
- 1...Kxe5
- 2.Bd4#
- 1...Qxf4!
- 1...Kxe5
- 1.Qxf6?
- threat
- 2.Bxd5#
- 1...Qxe5
- 2.Sg5#
- 1...Qg8
- 2.Rf4#
- 1...Qxe3!
- threat
- 1.Qe7?
- threat
- 2.Bxd5#
- 1...Qxe3
- 2.exf6#
- 1...dxe5
- 2.Qb4#
- 1...Qg8
- 2.Rf4#
- 1...Re6!
- threat
- 1.Qxd6?
- threat
- 2.Bxd5#
- 2.Qxd5#
- 1...Qxe5
- 2.Sg5#
- 1...Qg8
- 2.Rf4#
- 1...Rxd6!
- threat
- 1.Rf4+?
- Keys
- 1.Qb6!
- threat
- 2.Qd4#
- 1...Kxe5
- 2.Qd4#
- 1...Qxe5
- 2.Sg5#
- 1...Qxe3
- 2.Qxe3#
- 1...dxe5
- 2.Bxd5#
- threat
- 1.Qb6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- Q(a);N_GUARD,SBLOCK,XP(E)::S(D)
- P(e);OGATE,P_PINB(H),XP(E)::QAB1(J),XP(d)
- Tries
- Try
- R(A);CHECK
- Vars
- K(b);N_SPINP(d),P-FLIGHT,XP(E)::B(I)
- Refutation
- Q(a);XR(A)
- Try
- Q(J);XR(f)
- Threat
- B(H),XP(d)
- Vars
- Q(a);N_GUARD,XP(E)::S(D)
- Q(a);N_GUARD::R1(A)
- Refutation
- Q(a);XS(C)
- Try
- Q(J);
- Threat
- B(H),XP(d)
- Vars
- Q(a);N_GUARD,XS(C)::QAR(J)+P(E),XR(f)
- P(e);OGATE,P_PINB(H),SBLOCK,XP(E)::QAR(J)
- Q(a);N_GUARD::R1(A)
- Refutation
- R(f);
- Try
- Q(J);XP(e)
- Threat
- DUALS(2)
- Vars
- Q(a);N_GUARD,XP(E)::S(D)
- Q(a);N_GUARD::R1(A)
- Refutation
- R(f);P_PINB(H),XQ(J)
- Try
- Actual
- Q(J);
- Threat
- QAR1(J)
- Vars
- K(b);N_SPINP(d),P-FLIGHT,XP(E)::QAB1(J)
- Q(a);N_GUARD,SBLOCK,XP(E)::S(D)
- Q(a);OGATE,XS(C)::QAR1(J),XQ(a)
- P(e);SBLOCK,XP(E)::B(H),XP(d)
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).