MESON Chess Problem Database
Problem Display
PID: 164786 (B7/4p2K/8/6Pp/4N1R1/Q2qrk2/6R1/8 w - - 0 1)
Moen, Kabe
Comm., The Problemist Supplement, 2016
#2
7 + 5
| 56 | The Problemist | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Qf1
- 2.Sd2#
- 2.Sc5#
- 2.Sd6#
- 2.Sf6#
- 1...Qe2
- 2.Sd2#
- 2.Sf2#
- 2.Sc5#
- 2.Sd6#
- 2.Sf6#
- 2.R2g3#
- 1...Qc4
- 2.Sd2#
- 1...Qxe4+
- 2.Bxe4#
- 1...Qb5
- 2.Sd2#
- 1...Qa6
- 2.Sd2#
- 1...Qd1
- 2.Sd2#
- 1...Qd2
- 2.Sxd2#
- 1...Qxa3
- 2.Sd2#
- 1...Qb3
- 2.Sd2#
- 1...Qc3
- 2.Sd2#
- 1...Qd4
- 2.Sd2#
- 1...Qd5
- 2.Sd2#
- 1...Qd6
- 2.Sd2#
- 2.Sxd6#
- 1...Qd7
- 2.Sd2#
- 1...Qd8
- 2.Sd2#
- 1...Re2
- 2.R2g3#
- 1...Rxe4
- 2.Qxd3#
- 1...hxg4
- 2.Rf2#
- 1...e5
- 2.Qf8#
- 1...e6
- 2.Qf8#
- 1...Qf1
- Tries
- 1.Qa2?
- threat
- 2.R2g3#
- 2.Qf7#
- 2.Qf2#
- 1...Rxe4
- 2.R2g3#
- 2.Qf2#
- 1...hxg4
- 2.Rf2#
- 2.Qf2#
- 1...Re1
- 2.R2g3#
- 2.Qf2#
- 1...Re2
- 2.R2g3#
- 1...Qf1
- 2.Sd2#
- 2.R2g3#
- 2.Qf7#
- 1...Qc2
- 2.Qf7#
- 1...Qe2
- 2.Sd2#
- 2.R2g3#
- 2.Qf7#
- 1...Qc4
- 2.Sd2#
- 2.R2g3#
- 2.Qf2#
- 1...Qb5
- 2.Sd2#
- 2.R2g3#
- 2.Qf2#
- 1...Qa6
- 2.Sd2#
- 2.R2g3#
- 2.Qf2#
- 1...Qd2
- 2.Sxd2#
- 2.Qf7#
- 1...Qb3
- 2.Sd2#
- 2.R2g3#
- 2.Qf2#
- 1...Qc3
- 2.Sd2#
- 2.R2g3#
- 2.Qf2#
- 1...Qd4
- 2.Sd2#
- 2.R2g3#
- 2.Qf2#
- 1...Qd5
- 2.Sd2#
- 2.R2g3#
- 2.Qf2#
- 1...Qd6
- 2.Sd2#
- 2.Qf2#
- 1...Qd7
- 2.Sd2#
- 2.R2g3#
- 2.Qf2#
- 1...h4
- 2.Qf7#
- 2.Qf2#
- 1...e6
- 2.R2g3#
- 2.Qf2#
- 1...Qxe4+!
- threat
- 1.Qxd3?
- threat
- 2.Sd2#
- 2.Sf2#
- 2.Sc3#
- 2.Sc5#
- 2.Sd6#
- 2.Sf6#
- 2.R2g3#
- 2.Qf1#
- 1...hxg4
- 2.Rf2#
- 2.Qf1#
- 1...h4
- 2.Sd2#
- 2.Sf2#
- 2.Sc3#
- 2.Sc5#
- 2.Sd6#
- 2.Sf6#
- 2.Qf1#
- 1...e5
- 2.Sd2#
- 2.R2g3#
- 2.Qf1#
- 1...Rxd3!
- threat
- 1.g6?
- threat
- 2.Sd2#
- 2.Sg5#
- 1...Qxe4
- 2.Bxe4#
- 1...Rxe4
- 2.Qxd3#
- 1...hxg4
- 2.Rf2#
- 1...Re2
- 2.R2g3#
- 1...Qd2
- 2.Sxd2#
- 2.Sg5#
- 1...Re1!
- threat
- 1.Qa2?
- Keys
- 1.Qc5!
- threat
- 2.Qf5#
- 1...Rxe4
- 2.Qf2#
- 1...hxg4
- 2.Rf2#
- 1...Qb5
- 2.Sd2#
- 1...Qd5
- 2.Sd2#
- 1...Qd6
- 2.Sd2#
- 1...Qd7
- 2.Sd2#
- 1...Re1
- 2.Qf2#
- 1...Re2
- 2.R2g3#
- 1...e5
- 2.Qf8#
- 1...e6
- 2.Qf8#
- threat
- 1.Qc5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 2
- REMOVED MATES = 10
- Sets
- Q(a);N_PINS(C),P_SPINR(b)::B(G)+S(C),DCHECK
- Q(a);CHECK,OGATE,P_SPINQ(a),P_SPINR(b),XS(C)::B(G),XQ(a)
- Q(a);N_PINS(C),P_SPINR(b)::B(G)+S(C),DCHECK,XQ(a)
- Q(a);N_PINS(C),XQ(B)::B(G)+S(C),DCHECK
- Q(a);N_PINS(C)::B(G)+S(C),DCHECK
- Q(a);N_PINS(C),P_SPINR(b)::S(C)
- R(b);P_SPINQ(a),SBLOCK::R1(A)
- R(b);OGATEB,P_SPINQ(a),P_SPINR(b),XS(C)::QAR2(B),XQ(a)
- P(d);SBLOCK,XR(D)::R1(A)
- P(e);OGATE::QAR(B)
- Tries
- Try
- Q(B);
- Threat
- DUALS(3)
- Vars
- R(b);::R1(A)
- Q(a);::QAR(B)
- Refutation
- Q(a);CHECK,P_SPINQ(a),XS(C)
- Try
- Q(B);N_SPINS(C),P_PINR(b),XQ(a)
- Threat
- DUALS(8)
- Refutation
- R(b);N_SPINR(b),XQ(B)
- Try
- P(E);N_SPINS(C)
- Threat
- DUALS(2)
- Vars
- Q(a);OGATE,P_PINP(E),P_SPINQ(a),P_SPINR(b),XS(C)::B(G),XQ(a)
- R(b);OGATEB,P_SPINQ(a),P_SPINR(b),XS(C)::QAR2(B),XQ(a)
- P(d);SBLOCK,XR(D)::R1(A)
- R(b);P_SPINQ(a),SBLOCK::R1(A)
- Refutation
- R(b);P_SPINQ(a)
- Try
- Actual
- Q(B);
- Threat
- QAR2(B)
- Vars
- R(b);OGATE,P_SPINR(b),XS(C)::QAR1(B)
- P(d);SBLOCK,XR(D)::R1(A)
- Q(a);N_PINS(C)::B(G)+S(C),DCHECK
- Q(a);N_PINS(C)::S(C)
- R(b);OGATE::QAR1(B)
- R(b);SBLOCK::R1(A)
- P(e);OGATE::QAR(B)
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).