MESON Chess Problem Database
Problem Display
PID: 149733 (6QK/6nB/1nR4N/BN1Pk1P1/7R/4pb2/3q3b/5r2 w - - 0 1)
Kirillov, Valery Afanasievich
The Problemist, 2013
#2
10 + 8
SOLUTION
- SOUND
- Sets
- 1...Qc3
- 2.Bxc3#
- 1...Qa2
- 2.Bc3#
- 1...Qe2
- 2.Bc3#
- 1...Qf2
- 2.Bc3#
- 1...Qg2
- 2.Bc3#
- 1...Qxd5
- 2.Qxg7#
- 1...Bd1
- 2.Re4#
- 1...Be2
- 2.Re4#
- 1...Be4
- 2.Rxe4#
- 1...Bxd5
- 2.Qb8#
- 1...Bh5
- 2.Re4#
- 1...Sa4
- 2.Bc7#
- 1...Sxd5
- 2.Sf7#
- 1...Sd7
- 2.Bc7#
- 1...Sf5
- 2.Qe6#
- 1...Sh5
- 2.Qe6#
- 1...Se6
- 2.Qxe6#
- 1...Se8
- 2.Qe6#
- 1...Qc3
- Tries
- 1.Sc3?
- threat
- 2.Sf7#
- 2.Qxg7#
- 2.Qb8#
- 1...Qxc3
- 2.Bxc3#
- 1...Qxd5
- 2.Qxg7#
- 1...Bxd5
- 2.Qb8#
- 1...Sxd5
- 2.Sf7#
- 1...Bf4
- 2.Qxg7#
- 1...Be4
- 2.Rxe4#
- 1...Bd1
- 2.Re4#
- 2.Qb8#
- 1...Bh1
- 2.Qb8#
- 1...Be2
- 2.Re4#
- 2.Qb8#
- 1...Bg2
- 2.Qb8#
- 1...Bh5
- 2.Re4#
- 2.Qb8#
- 1...Sc4
- 2.Sf7#
- 2.Qxg7#
- 1...Sd7
- 2.Sf7#
- 2.Bc7#
- 1...Sa8
- 2.Sf7#
- 2.Qxg7#
- 1...Sc8
- 2.Sf7#
- 2.Qxg7#
- 1...Sf5
- 2.Sf7#
- 2.Re6#
- 2.Qe6#
- 1...Sh5
- 2.Sf7#
- 2.Re6#
- 2.Qe6#
- 2.Qb8#
- 2.Qe8#
- 1...Se6
- 2.Sf7#
- 2.Rxe6#
- 2.Qxe6#
- 1...Se8
- 2.Sf7#
- 2.Re6#
- 2.Qe6#
- 2.Qxe8#
- 1...Bg4!
- threat
- 1.Bc3+?
- 1...Qd4
- 2.Bxd4#
- 1...Qxc3!
- 1...Qd4
- 1.Bxb6?
- threat
- 2.Bc7#
- 1...Qxd5
- 2.Qxg7#
- 1...Se6
- 2.Qxe6#
- 1...Qa5
- 2.Bd4#
- 1...Sf5
- 2.Qe6#
- 1...Se8
- 2.Qe6#
- 1...Qb4!
- threat
- 1.Rd4?
- threat
- 2.Sf7#
- 2.Qxg7#
- 2.Qb8#
- 1...Bxd5
- 2.Sg4#
- 2.Qb8#
- 1...Sxd5
- 2.Sf7#
- 1...Be4
- 2.Rxe4#
- 2.Qb8#
- 1...Qb4
- 2.Sf7#
- 2.Qxg7#
- 1...Bd1
- 2.Re4#
- 2.Qb8#
- 1...Bh1
- 2.Sg4#
- 2.Qb8#
- 1...Be2
- 2.Re4#
- 2.Qb8#
- 1...Bg2
- 2.Sg4#
- 2.Qb8#
- 1...Bg4
- 2.Sxg4#
- 2.Re4#
- 2.Qb8#
- 1...Bh5
- 2.Re4#
- 2.Qb8#
- 1...Sc4
- 2.Sf7#
- 2.Qxg7#
- 1...Sd7
- 2.Sf7#
- 2.Bc7#
- 1...Sa8
- 2.Sf7#
- 2.Qxg7#
- 1...Sc8
- 2.Sf7#
- 2.Qxg7#
- 1...Sf5
- 2.Sf7#
- 2.Re6#
- 2.Qe6#
- 1...Sh5
- 2.Sf7#
- 2.Re6#
- 2.Qe6#
- 2.Qb8#
- 2.Qe8#
- 1...Se6
- 2.Sf7#
- 2.Rxe6#
- 2.Qxe6#
- 1...Se8
- 2.Sf7#
- 2.Re6#
- 2.Qe6#
- 2.Qxe8#
- 1...Qxd4!
- threat
- 1.Re6+?
- 1...Sxe6
- 2.Qxe6#
- 1...Kxd5!
- 1...Sxe6
- 1.Qd8?
- threat
- 2.Sf7#
- 2.Qd6#
- 1...Qxd5
- 2.Qf6#
- 1...Bxd5
- 2.Qc7#
- 2.Qd6#
- 2.Qb8#
- 1...Bg4
- 2.Qd6#
- 1...Qb4
- 2.Sf7#
- 1...Bd1
- 2.Re4#
- 2.Qd6#
- 1...Bh1
- 2.Qd6#
- 1...Be2
- 2.Re4#
- 2.Qd6#
- 1...Bg2
- 2.Qd6#
- 1...Be4
- 2.Rxe4#
- 2.Qd6#
- 1...Bh5
- 2.Re4#
- 2.Qd6#
- 1...Sc4
- 2.Sf7#
- 1...Sc8
- 2.Sf7#
- 1...Sf5
- 2.Sf7#
- 2.Re6#
- 1...Se8
- 2.Sf7#
- 2.Re6#
- 1...Sd7!
- threat
- 1.Sc3?
- Keys
- 1.Rc5!
- threat
- 2.Sf7#
- 2.Qxg7#
- 2.Qb8#
- 1...Qxd5
- 2.Bc3#
- 1...Bxd5
- 2.Re4#
- 1...Sxd5
- 2.Bc7#
- 1...Bg4
- 2.Qb8#
- 1...Bd1
- 2.Re4#
- 2.Qb8#
- 1...Bh1
- 2.Qb8#
- 1...Be2
- 2.Re4#
- 2.Qb8#
- 1...Bg2
- 2.Qb8#
- 1...Be4
- 2.Rxe4#
- 2.Qb8#
- 1...Bh5
- 2.Re4#
- 2.Qb8#
- 1...Sc4
- 2.Sf7#
- 2.Qxg7#
- 1...Sd7
- 2.Sf7#
- 2.Bc7#
- 1...Sa8
- 2.Sf7#
- 2.Qxg7#
- 1...Sc8
- 2.Sf7#
- 2.Qxg7#
- 1...Sf5
- 2.Sf7#
- 2.Qe6#
- 1...Sh5
- 2.Sf7#
- 2.Qe6#
- 2.Qb8#
- 2.Qe8#
- 1...Se6
- 2.Sf7#
- 2.Qxe6#
- 1...Se8
- 2.Sf7#
- 2.Qe6#
- 2.Qxe8#
- threat
- 1.Rc5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 3
- ADDED MATES = 3
- REMOVED MATES = 15
- Sets
- Q(b);N_GUARD::B(B),XQ(b)
- Q(b);N_GUARD::B(B)
- Q(b);SBLOCK,XP(D)::QAB(I),XS(h)
- B(e);N_GUARD::R1(A)
- B(e);N_GUARD::R1(A),XB(e)
- B(e);SBLOCK,XP(D)::QAB(I)
- S(g);OGATE::B(B)
- S(g);SBLOCK,XP(D)::S(G)
- S(h);N_GUARD::QAR1(I)
- S(h);N_GUARD::QAR1(I),XS(h)
- Tries
- Try
- S(C);
- Threat
- DUALS(3)
- Vars
- Q(b);OGATE,XS(C)::B(B),XQ(b)
- Q(b);XP(D)::QAB(I),XS(h)
- B(e);XP(D)::QAB(I)
- S(g);XP(D)::S(G)
- B(c);::QAB(I),XS(h)
- B(e);N_GUARD::R1(A),XB(e)
- B(e);::QAB(I)
- Refutation
- B(e);
- Try
- B(B);CHECK
- Vars
- Q(b);N_GUARD,P_SPINQ(b)::B(B),XQ(b)
- Refutation
- Q(b);XB(B)
- Try
- B(B);XS(g)
- Threat
- B(B)
- Vars
- Q(b);SBLOCK,XP(D)::QAB(I),XS(h)
- S(h);N_GUARD::QAR1(I),XS(h)
- Q(b);N_GUARD::B(B)
- S(h);N_GUARD::QAR1(I)
- Refutation
- Q(b);
- Try
- R(A);
- Threat
- DUALS(3)
- Vars
- S(g);XP(D)::S(G)
- Refutation
- Q(b);XR(A)
- Try
- R(F);CHECK
- Vars
- S(h);OGATE,XR(F)::QAR1(I),XS(h)
- Refutation
- K(f);P-FLIGHT,XP(D)
- Try
- Q(I);
- Threat
- DUALS(2)
- Vars
- Q(b);SBLOCK,XP(D)::QAB1(I)
- B(e);::QAB1(I)
- Q(b);::S(G)
- S(g);::S(G)
- Refutation
- S(g);
- Try
- Actual
- R(F);
- Threat
- DUALS(3)
- Vars
- Q(b);N_GUARD,P_SPINQ(b),XP(D)::B(B)
- B(e);N_GUARD,P_SPINB(e),XP(D)::R1(A)
- S(g);OGATE,P_SPINS(g),XP(D)::B(B)
- B(e);::QAB(I)
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).