MESON Chess Problem Database
Problem Display
PID: 68470 (1KR2r2/1p3pPN/8/pr2BkpP/2Q3p1/4R1P1/1Pb2p2/n7 w - - 0 1)
Stoyanov, Kiril N
Die Schwalbe, 2006
#2
10 + 11
SOLUTION
- SOUND
- Sets
- 1...Rxc8+
- 2.Qxc8#
- 1...Rd8
- 2.Qxf7#
- 1...Re8
- 2.Qxf7#
- 1...Rg8
- 2.Qxf7#
- 1...Rh8
- 2.Qxf7#
- 1...Rxc8+
- Tries
- 1.Bc3?
- threat
- 2.Qxb5#
- 1...Rxc8+
- 2.Qxc8#
- 1...Rxb2
- 2.Re5#
- 2.Qd5#
- 2.Qc5#
- 1...f1Q
- 2.Qxf1#
- 1...f1B
- 2.Qxf1#
- 1...Rb3
- 2.Re5#
- 2.Qd5#
- 2.Qc5#
- 1...Rb4
- 2.Re5#
- 2.Qd5#
- 2.Qc5#
- 1...Rc5
- 2.Qxc5#
- 1...Rd5
- 2.Qxd5#
- 1...Re5
- 2.Rxe5#
- 1...Rb6
- 2.Re5#
- 2.Qd5#
- 2.Qc5#
- 1...Rd8
- 2.Qxf7#
- 1...Re8
- 2.Qxf7#
- 1...Bb3
- 2.Qd3#
- 2.Qe4#
- 1...Bd3
- 2.Qxd3#
- 1...Ba4
- 2.Qd3#
- 2.Qe4#
- 1...Be4
- 2.Qxe4#
- 1...Sb3!
- threat
- 1.Bd4?
- threat
- 2.Qxb5#
- 1...Rxc8+
- 2.Qxc8#
- 1...Rxb2
- 2.Re5#
- 2.Qd5#
- 2.Qc5#
- 1...f1Q
- 2.Qxf1#
- 1...f1B
- 2.Qxf1#
- 1...Rb3
- 2.Re5#
- 2.Qd5#
- 2.Qc5#
- 1...Rb4
- 2.Re5#
- 2.Qd5#
- 2.Qc5#
- 1...Rc5
- 2.Qxc5#
- 1...Rd5
- 2.Qxd5#
- 1...Re5
- 2.Rxe5#
- 1...Rb6
- 2.Re5#
- 2.Qd5#
- 2.Qc5#
- 1...Rd8
- 2.Qxf7#
- 1...Re8
- 2.Qxf7#
- 1...Bb3
- 2.Qd3#
- 1...Bd3
- 2.Qxd3#
- 1...Ba4
- 2.Qd3#
- 1...Sb3
- 2.Qxc2#
- 1...Be4!
- threat
- 1.Bc7?
- threat
- 2.Qxb5#
- 1...Rxb2
- 2.Re5#
- 2.Qd5#
- 2.Qc5#
- 1...f1Q
- 2.Qxf1#
- 1...f1B
- 2.Qxf1#
- 1...Rb3
- 2.Re5#
- 2.Qd5#
- 2.Qc5#
- 1...Rb4
- 2.Re5#
- 2.Qd5#
- 2.Qc5#
- 1...Rc5
- 2.Qxc5#
- 1...Rd5
- 2.Qxd5#
- 1...Re5
- 2.Rxe5#
- 1...Rb6
- 2.Re5#
- 2.Qd5#
- 2.Qc5#
- 1...Rd8
- 2.Qxf7#
- 1...Re8
- 2.Qxf7#
- 1...Bb3
- 2.Qd3#
- 2.Qe4#
- 1...Bd3
- 2.Qxd3#
- 1...Ba4
- 2.Qd3#
- 2.Qe4#
- 1...Be4
- 2.Qxe4#
- 1...Sb3
- 2.Qxc2#
- 1...Rxc8+!
- threat
- 1.Qe6+?
- 1...fxe6
- 2.Rxf8#
- 2.gxf8Q#
- 2.gxf8R#
- 1...Kxe6!
- 1...fxe6
- 1.g8Q?
- threat
- 2.Qxg5#
- 1...Rxc8+
- 2.Qcxc8#
- 2.Qgxc8#
- 1...Rxg8
- 2.Qxf7#
- 1...f6
- 2.Qce6#
- 2.Qge6#
- 2.Qg6#
- 1...Rd5!
- threat
- 1.Bc3?
- Keys
- 1.Bd6!
- threat
- 2.Qxb5#
- 1...Rxc8+
- 2.Qxc8#
- 1...Rxb2
- 2.Re5#
- 2.Qd5#
- 2.Qc5#
- 1...f1Q
- 2.Qxf1#
- 1...f1B
- 2.Qxf1#
- 1...Rb3
- 2.Re5#
- 2.Qd5#
- 2.Qc5#
- 1...Rb4
- 2.Re5#
- 2.Qd5#
- 2.Qc5#
- 1...Rc5
- 2.Qxc5#
- 1...Rd5
- 2.Qxd5#
- 1...Re5
- 2.Rxe5#
- 1...Rb6
- 2.Re5#
- 2.Qd5#
- 2.Qc5#
- 1...Re8
- 2.Qxf7#
- 1...Bb3
- 2.Qd3#
- 2.Qe4#
- 1...Bd3
- 2.Qxd3#
- 1...Ba4
- 2.Qd3#
- 2.Qe4#
- 1...Be4
- 2.Qxe4#
- 1...Sb3
- 2.Qxc2#
- threat
- 1.Bd6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 8
- REMOVED MATES = 3
- Sets
- R(k);CHECK,OGATE,XR(J)::QAB(D),XR(k)
- R(k);N_GUARD::QAR2(D),XP(j)
- Tries
- Try
- B(E);
- Threat
- QAR(D),XR(f)
- Vars
- R(k);CHECK,OGATE,XR(J)::QAB(D),XR(k)
- P(c);OGATEB::QAR(D),XQ(c)
- P(c);OGATEB::QAR(D),XB(c)
- R(f);N_GUARD::QAR(D),XR(f)
- R(f);N_GUARD::QAR2(D),XR(f)
- R(f);N_GUARD::R1(B),XR(f)
- R(k);N_GUARD::QAR2(D),XP(j)
- B(b);N_GUARD::QAB(D),XB(b)
- B(b);N_GUARD::QAB1(D),XB(b)
- Refutation
- S(a);
- Try
- B(E);
- Threat
- QAR(D),XR(f)
- Vars
- R(k);CHECK,OGATE,XR(J)::QAB(D),XR(k)
- P(c);OGATEB::QAR(D),XQ(c)
- P(c);OGATEB::QAR(D),XB(c)
- R(f);N_GUARD::QAR(D),XR(f)
- R(f);N_GUARD::QAR2(D),XR(f)
- R(f);N_GUARD::R1(B),XR(f)
- R(k);N_GUARD::QAR2(D),XP(j)
- B(b);N_GUARD::QAB(D)
- B(b);N_GUARD::QAB(D),XB(b)
- S(a);N_GUARD::QAB(D),XB(b)
- Refutation
- B(b);
- Try
- B(E);
- Threat
- QAR(D),XR(f)
- Vars
- P(c);OGATEB::QAR(D),XQ(c)
- P(c);OGATEB::QAR(D),XB(c)
- R(f);N_GUARD::QAR(D),XR(f)
- R(f);N_GUARD::QAR2(D),XR(f)
- R(f);N_GUARD::R1(B),XR(f)
- R(k);N_GUARD::QAR2(D),XP(j)
- B(b);N_GUARD::QAB(D),XB(b)
- B(b);N_GUARD::QAB1(D),XB(b)
- S(a);N_GUARD::QAB(D),XB(b)
- Refutation
- R(k);CHECK,XR(J)
- Try
- Q(D);CHECK
- Refutation
- K(g);S_FLIGHT,XQ(D)
- Try
- P(G);
- Threat
- QAR1(G),XP(h)
- Vars
- R(k);N_GUARD,XQ(G)::QAR2(D),XP(j)
- Refutation
- R(f);
- Try
- Actual
- B(E);
- Threat
- QAR(D),XR(f)
- Vars
- R(k);CHECK,OGATE,XR(J)::QAB(D),XR(k)
- P(c);OGATEB::QAR(D),XQ(c)
- P(c);OGATEB::QAR(D),XB(c)
- R(f);N_GUARD::QAR(D),XR(f)
- R(f);N_GUARD::QAR2(D),XR(f)
- R(f);N_GUARD::R1(B),XR(f)
- R(k);N_GUARD::QAR2(D),XP(j)
- B(b);N_GUARD::QAB(D),XB(b)
- B(b);N_GUARD::QAB1(D),XB(b)
- S(a);N_GUARD::QAB(D),XB(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).