MESON Chess Problem Database
Problem Display
PID: 57807 (2K3bn/1p1Q3N/2BR4/brp2P2/1N3k1B/3pR2P/3P2rn/5q2 w - - 0 1)
Dikusarov, Andrey Nikolayovich
Telescacco 92, 2000
#2
11 + 11
SOLUTION
- SOUND
- Sets
- 1...Qa1
- 2.Sxd3#
- 1...Qc1
- 2.Sxd3#
- 1...Qd1
- 2.Sxd3#
- 1...Qe1
- 2.Sxd3#
- 1...Qg1
- 2.Sxd3#
- 1...Qh1
- 2.Sxd3#
- 1...Qf2
- 2.Sxd3#
- 1...Qf3
- 2.Sxd3#
- 1...Rxd2
- 2.Bg5#
- 1...Re2
- 2.Sxd3#
- 2.Bg3#
- 2.Bg5#
- 1...Rf2
- 2.Bg3#
- 2.Bg5#
- 1...Rg3
- 2.Bxg3#
- 1...Rg5
- 2.Bxg5#
- 1...Bd5
- 2.Sxd5#
- 1...Bxh7
- 2.Sd5#
- 1...Sf3
- 2.Re4#
- 1...Sg4
- 2.Bg5#
- 1...Sf7
- 2.Sd5#
- 1...cxb4
- 2.Rd4#
- 1...c4
- 2.Rd4#
- 1...Qa1
- Tries
- 1.Qe6?
- threat
- 2.Sd5#
- 2.Qe4#
- 2.Qe5#
- 1...Rxb4
- 2.Qe5#
- 1...Bxb4
- 2.Qe4#
- 2.Qe5#
- 1...cxb4
- 2.Rd4#
- 2.Qe4#
- 1...bxc6
- 2.Qe4#
- 2.Qe5#
- 1...Qa1
- 2.Sxd3#
- 2.Sd5#
- 2.Qe4#
- 1...Qf3
- 2.Sxd3#
- 2.Qe5#
- 1...Sf3
- 2.Sd5#
- 2.Re4#
- 2.Qe4#
- 1...Sg4
- 2.Sd5#
- 2.Bg5#
- 2.Qe4#
- 1...Sg6
- 2.Sd5#
- 2.Qe4#
- 1...Sf7
- 2.Sd5#
- 2.Qe4#
- 1...c4
- 2.Rd4#
- 2.Qe4#
- 1...Bxe6+!
- threat
- 1.Qe8?
- threat
- 2.Qe4#
- 2.Qe5#
- 1...Kxf5
- 2.Rf6#
- 2.Qe4#
- 2.Qe5#
- 1...Rxb4
- 2.Qe5#
- 1...cxb4
- 2.Qe4#
- 1...Qa1
- 2.Qe4#
- 1...Qf3
- 2.Qe5#
- 1...Bd5
- 2.Qe5#
- 1...Sf3
- 2.Qe4#
- 1...Sg4
- 2.Qe4#
- 1...Sg6
- 2.Qe4#
- 1...Sf7
- 2.Qe4#
- 1...c4
- 2.Qe4#
- 1...Be6+!
- threat
- 1.Qe7?
- threat
- 2.Qe4#
- 2.Qe5#
- 1...Kxf5
- 2.Rf6#
- 2.Qf6#
- 2.Qe4#
- 2.Qe5#
- 1...Rxb4
- 2.Qe5#
- 1...cxb4
- 2.Qe4#
- 1...Qa1
- 2.Qe4#
- 1...Qf3
- 2.Qe5#
- 1...Bd5
- 2.Qe5#
- 1...Sf3
- 2.Qe4#
- 1...Sg4
- 2.Qg5#
- 2.Qe4#
- 1...Sg6
- 2.Qe4#
- 1...Sf7
- 2.Qe4#
- 1...c4
- 2.Qe4#
- 1...Be6+!
- threat
- 1.Qe6?
- Keys
- 1.Rf6!
- threat
- 2.Qd6#
- 1...Rxd2
- 2.Bg5#
- 1...cxb4
- 2.Qd4#
- 1...Qa1
- 2.Sxd3#
- 1...Bc7
- 2.Qxc7#
- 1...Be6
- 2.fxe6#
- 1...Sf3
- 2.Re4#
- 1...Sg4
- 2.Bg5#
- 1...Sg6
- 2.fxg6#
- 1...Sf7
- 2.Sd5#
- 1...c4
- 2.Qd4#
- threat
- 1.Rf6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 3
- REMOVED MATES = 11
- Sets
- Q(a);N_GUARD::S(D),XP(d)
- R(b);N_GUARD,XP(A)::B(E)
- R(b);N_GUARD::B(E),XR(b)
- B(j);N_GUARD::S(D),XB(j)
- B(j);N_GUARD,XS(J)::S(D)
- S(c);SBLOCK::R1(B)
- S(c);S_CUTR(b)::B(E)
- S(k);S_CUTB(j)::S(D)
- P(h);N_GUARD,XS(D)::R(H)
- P(h);N_GUARD::R(H)
- Tries
- Try
- Q(I);
- Threat
- DUALS(3)
- Vars
- R(g);XS(D)::QAB1(I)
- Refutation
- B(j);CHECK,XQ(I)
- Try
- Q(I);
- Threat
- DUALS(2)
- Vars
- R(g);XS(D)::QAB1(I)
- P(h);XS(D)::QAR1(I)
- Q(a);::QAR1(I)
- Q(a);::QAB1(I)
- B(j);::QAB1(I)
- S(c);::QAR1(I)
- S(k);::QAR1(I)
- P(h);::QAR1(I)
- Refutation
- B(j);CHECK
- Try
- Q(I);
- Threat
- DUALS(2)
- Vars
- R(g);XS(D)::QAB1(I)
- P(h);XS(D)::QAR1(I)
- Q(a);::QAR1(I)
- Q(a);::QAB1(I)
- B(j);::QAB1(I)
- S(c);::QAR1(I)
- S(k);::QAR1(I)
- P(h);::QAR1(I)
- Refutation
- B(j);CHECK
- Try
- Actual
- R(H);
- Threat
- QAB(I)
- Vars
- R(b);N_GUARD,XP(A)::B(E)
- P(h);N_GUARD,XS(D)::QAR2(I)
- Q(a);N_GUARD::S(D),XP(d)
- B(f);N_GUARD::QAB(I),XB(f)
- B(j);OGATE,P_PINQ(I)::R(H)+P(F),XB(j)
- S(c);SBLOCK::R1(B)
- S(c);S_CUTR(b)::B(E)
- S(k);OGATE::R(H)+P(F),XS(k)
- S(k);S_CUTB(j)::S(D)
- P(h);N_GUARD::QAR2(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).