MESON Chess Problem Database
Problem Display
PID: 54381 (3Q2q1/3b1p2/6p1/2PBR1rR/1P1k4/1P6/K6B/2NN4 w - - 0 1)
Delobel, Bernard
StrateGems, 2004
#2
11 + 6
SOLUTION
- SOUND
- Sets
- 1...Rg1
- 2.Bxg1#
- 2.Re4#
- 1...Rg3
- 2.Re4#
- 1...Bh3
- 2.Re4#
- 1...Ba4
- 2.Re4#
- 1...Bg4
- 2.Re4#
- 1...Bb5
- 2.Re4#
- 1...Bc6
- 2.Re4#
- 1...Be6
- 2.Re4#
- 1...Bc8
- 2.Re4#
- 1...Be8
- 2.Re4#
- 1...Rg1
- Tries
- 1.Bg1+?
- 1...Rxg1
- 2.Re4#
- 1...Kxe5!
- 1...Rxg1
- 1.Re3?
- threat
- 2.Rd3#
- 1...Kxd5
- 2.Qxd7#
- 1...Rxd5
- 2.Se2#
- 1...Rg3
- 2.Se2#
- 2.Re4#
- 2.Qf6#
- 1...Bb5
- 2.Re4#
- 1...Bf5
- 2.Se2#
- 2.Be5#
- 1...Rg2+!
- threat
- 1.Rh4+?
- 1...Bg4
- 2.Re4#
- 1...Rg4!
- 1...Bg4
- 1.Qxg5?
- threat
- 2.Bg1#
- 2.Re4#
- 2.Qd2#
- 2.Qe3#
- 2.Qf4#
- 2.Qg1#
- 1...gxh5
- 2.Bg1#
- 2.Re4#
- 2.Qd2#
- 2.Qe3#
- 2.Qf4#
- 1...Qe8
- 2.Bg1#
- 2.Qd2#
- 2.Qe3#
- 2.Qf4#
- 2.Qg1#
- 1...Bg4
- 2.Bg1#
- 2.Re4#
- 2.Qd2#
- 2.Qe3#
- 2.Qf4#
- 2.Qxg4#
- 1...Bb5
- 2.Bg1#
- 2.Re4#
- 2.Rh4#
- 2.Qe3#
- 2.Qf4#
- 2.Qh4#
- 2.Qg1#
- 2.Qg4#
- 1...Bf5
- 2.Qe3#
- 2.Qg1#
- 1...f5
- 2.Qd2#
- 2.Qe3#
- 2.Qf4#
- 2.Qg1#
- 1...Qa8+!
- threat
- 1.Qf6?
- threat
- 2.Rf5#
- 2.Rexg5#
- 2.Qf2#
- 2.Qf4#
- 1...Rg2+
- 2.Re2#
- 1...Rxe5
- 2.Qxe5#
- 1...Rxh5
- 2.Bg1#
- 2.Rf5#
- 2.Rg5#
- 2.Rxh5#
- 2.Qf2#
- 2.Qf4#
- 1...Qe8
- 2.Qf2#
- 2.Qf4#
- 1...Qg7
- 2.Qf2#
- 2.Qf4#
- 1...Qb8
- 2.Qf2#
- 2.Qf4#
- 1...Qd8
- 2.Qf2#
- 2.Qf4#
- 1...Qh8
- 2.Qf2#
- 2.Qf4#
- 1...Rg1
- 2.Bxg1#
- 2.Re1#
- 2.Re2#
- 2.Re3#
- 2.Re4#
- 2.Ref5#
- 2.Reg5#
- 2.Re6#
- 2.Re7#
- 2.Re8#
- 2.Qf2#
- 2.Qf4#
- 1...Rg3
- 2.Re1#
- 2.Re2#
- 2.Re3#
- 2.Re4#
- 2.Ref5#
- 2.Reg5#
- 2.Re6#
- 2.Re7#
- 2.Re8#
- 2.Qf4#
- 1...Rg4
- 2.Re1#
- 2.Re2#
- 2.Re3#
- 2.Re4#
- 2.Ref5#
- 2.Reg5#
- 2.Re6#
- 2.Re7#
- 2.Re8#
- 2.Qf2#
- 1...Rf5
- 2.Rexf5#
- 1...Bf5
- 2.Rxf5#
- 1...Qa8+!
- threat
- 1.Qxd7?
- threat
- 2.Bh1#
- 2.Bg2#
- 2.Bf3#
- 2.Bc4#
- 2.Be4#
- 2.Bc6#
- 2.Be6#
- 2.Bb7#
- 2.Bxf7#
- 2.Ba8#
- 2.Re4#
- 1...Qa8+
- 2.Bxa8#
- 1...Rg2+
- 2.Bxg2#
- 1...Rxe5
- 2.Bxe5#
- 1...Qb8
- 2.Re4#
- 1...Qc8
- 2.Re4#
- 1...Qd8
- 2.Re4#
- 1...Qf8
- 2.Re4#
- 1...Rg4
- 2.Bh1#
- 2.Bg2#
- 2.Bf3#
- 2.Bc4#
- 2.Be4#
- 2.Bc6#
- 2.Be6#
- 2.Bb7#
- 2.Bxf7#
- 2.Ba8#
- 2.Qxg4#
- 1...f5
- 2.Be6#
- 2.Bf7#
- 2.Bxg8#
- 1...f6
- 2.Be6#
- 2.Bf7#
- 2.Bxg8#
- 2.Re4#
- 1...Qe8!
- threat
- 1.Bg1+?
- Keys
- 1.Re2!
- threat
- 2.Rd2#
- 1...Kxd5
- 2.Qxd7#
- 1...Rxd5
- 2.Bg1#
- 1...Rg2
- 2.Qf6#
- 1...Rg3
- 2.Re4#
- 2.Qf6#
- 1...Bb5
- 2.Re4#
- 1...Bf5
- 2.Be5#
- threat
- 1.Re2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 8
- Sets
- R(b);::R1(I)
- B(d);::R1(I)
- Tries
- Try
- B(D);CHECK
- Vars
- R(b);XB(D)::R1(I)
- Refutation
- K(a);P_SPINR(b),S_FLIGHT,XR(I)
- Try
- R(I);
- Threat
- R1(I)
- Vars
- K(a);OGATEB,P-FLIGHT,P_SPINB(d),P_SPINR(b),XB(H)::QAR2(K),XB(d)
- R(b);XB(H)::S(A)
- B(d);::R1(I)
- Refutation
- R(b);CHECK
- Try
- R(J);CHECK
- Vars
- B(d);P_SPINB(d)::R1(I)
- Refutation
- R(b);P_SPINR(b)
- Try
- Q(K);XR(b)
- Threat
- DUALS(6)
- Refutation
- Q(f);CHECK
- Try
- Q(K);
- Threat
- DUALS(4)
- Vars
- R(b);CHECK,N_GUARD::QAB(K)+R(I)
- R(b);OGATE,P_SPINR(b),XR(I)::QAB1(K),XR(b)
- R(b);::QAB(K)+R(I),XR(b)
- B(d);::QAB(K)+R(I),XB(d)
- Refutation
- Q(f);CHECK
- Try
- Q(K);XB(d)
- Threat
- DUALS(11)
- Vars
- Q(f);CHECK::QAR(K)+B(H),XQ(f)
- R(b);CHECK::QAR(K)+B(H),XR(b)
- R(b);OGATE,XR(I)::B(D),XR(b)
- Q(f);::R1(I)
- Refutation
- Q(f);
- Try
- Actual
- R(I);
- Threat
- R(I)
- Vars
- K(a);OGATEB,P-FLIGHT,P_SPINB(d),P_SPINR(b),XB(H)::QAR2(K),XB(d)
- R(b);N_GUARD,XB(H)::B(D)
- R(b);N_GUARD,P_PINR(I)::QAB(K)
- B(d);::R1(I)
- B(d);S_CUTR(b)::B(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).