MESON Chess Problem Database
Problem Display
PID: 117415 (N2N3K/2rp2P1/q2B4/1nbkp3/1Pr5/1BpP4/4n3/3R1bQ1 w - - 0 1)
Llamas, Juan Garcia
SEPA, 1951
#2
10 + 11
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qxd6
- 2.Bxc4#
- 1...Ra7
- 2.Qxc5#
- 1...Rb7
- 2.Qxc5#
- 1...Bxd6
- 2.g8Q#
- 2.g8B#
- 1...Sxd6
- 2.Sxc7#
- 1...e4
- 2.dxc4#
- 1...Qxd6
- Tries
- 1.Sxc7+?
- 1...Sxc7
- 2.Qxc5#
- 1...Kxd6!
- 1...Sxc7
- 1.Bxc5?
- threat
- 2.Bxc4#
- 1...Rxc5
- 2.Qxc5#
- 1...e4
- 2.Qg5#
- 1...Qa2
- 2.Sb6#
- 2.g8Q#
- 2.g8B#
- 1...Sa3
- 2.Sxc7#
- 1...Sbd4
- 2.Sxc7#
- 1...Sd6
- 2.Sxc7#
- 1...Sa7
- 2.Sxc7#
- 1...Qh6+!
- threat
- 1.bxc5?
- threat
- 2.Bxc4#
- 2.g8Q#
- 2.g8B#
- 1...Qxd6
- 2.Bxc4#
- 1...Qxa8
- 2.Bxc4#
- 2.g8Q#
- 2.g8B#
- 1...Rxc5
- 2.Qxc5#
- 1...Sxd6
- 2.Sxc7#
- 1...Qb7
- 2.Bxc4#
- 2.g8Q#
- 2.g8B#
- 1...Qc8
- 2.Sb6#
- 2.Bxc4#
- 2.g8Q#
- 2.g8B#
- 1...Qa1
- 2.Sb6#
- 2.Bxc4#
- 2.g8Q#
- 2.g8B#
- 1...Qa2
- 2.Sb6#
- 2.g8Q#
- 2.g8B#
- 1...Qa3
- 2.Sb6#
- 2.Bxc4#
- 2.g8Q#
- 2.g8B#
- 1...Qa4
- 2.Sb6#
- 2.g8Q#
- 2.g8B#
- 1...Qa5
- 2.Bxc4#
- 2.g8Q#
- 2.g8B#
- 1...Qb6
- 2.Sxb6#
- 2.Bxc4#
- 2.g8Q#
- 2.g8B#
- 1...Qc6
- 2.Bxc4#
- 2.g8Q#
- 2.g8B#
- 1...Qa7
- 2.Bxc4#
- 2.g8Q#
- 2.g8B#
- 1...Rc6
- 2.Bxc4#
- 2.g8Q#
- 2.g8B#
- 1...Ra7
- 2.Bxc4#
- 2.g8Q#
- 2.g8B#
- 1...Rb7
- 2.Bxc4#
- 2.g8Q#
- 2.g8B#
- 1...Rc8
- 2.Bxc4#
- 2.g8Q#
- 2.g8B#
- 1...Bg2
- 2.Bxc4#
- 2.g8Q#
- 2.g8B#
- 1...Bh3
- 2.Bxc4#
- 1...Sc1
- 2.Bxc4#
- 2.g8Q#
- 2.g8B#
- 1...Sg3
- 2.Bxc4#
- 2.g8Q#
- 2.g8B#
- 1...Sed4
- 2.Bxc4#
- 1...Sf4
- 2.Bxc4#
- 1...Sa3
- 2.Sxc7#
- 2.g8Q#
- 2.g8B#
- 1...Sbd4
- 2.Sxc7#
- 1...Sa7
- 2.Sxc7#
- 2.g8Q#
- 2.g8B#
- 1...c2
- 2.Bxc4#
- 2.g8Q#
- 2.g8B#
- 1...e4
- 2.Bxc4#
- 2.dxc4#
- 2.g8Q#
- 2.g8B#
- 1...Sxg1!
- threat
- 1.Sxc7+?
- Keys
- 1.Qg6!
- threat
- 2.dxc4#
- 1...Kd4
- 2.Qe4#
- 1...Bd4
- 2.g8Q#
- 2.g8B#
- 1...Sed4
- 2.Bxc4#
- 1...Sbd4
- 2.Sxc7#
- threat
- 1.Qg6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 5
- Sets
- Q(i);SBLOCK,XB(F)::B(C),XR(d)
- R(j);N_GUARD::QAR1(B),XB(f)
- B(f);SBLOCK,XB(F)::P=Q
- S(e);N_GUARD,SBLOCK,XB(F)::S(H),XR(j)
- P(h);SBLOCK::R(A)+P(D)DCHECK,XR(d)
- Tries
- Try
- S(H);CHECK,XR(j)
- Vars
- S(e);XS(H)::QAR1(B),XB(f)
- Refutation
- K(g);N_SPINR(d),P-FLIGHT,XB(F)
- Try
- B(F);XB(f)
- Threat
- B(C),XR(d)
- Vars
- R(j);OGATE,XB(F)::QAR1(B),XR(j)
- P(h);OGATEB::QAR(B)
- S(e);N_GUARD::S(H),XR(j)
- Refutation
- Q(i);CHECK
- Try
- P(E);XB(f)
- Threat
- DUALS(3)
- Vars
- Q(i);XB(F)::B(C),XR(d)
- R(j);OGATE,XP(E)::QAR1(B),XR(j)
- S(e);N_GUARD,XB(F)::S(H),XR(j)
- B(a);::B(C),XR(d)
- S(b);::B(C),XR(d)
- S(e);N_GUARD::S(H),XR(j)
- Refutation
- S(b);XQ(B)
- Try
- Actual
- Q(B);
- Threat
- R(A)+P(D)DCHECK,XR(d)
- Vars
- K(g);N_SPINR(d),P-FLIGHT::QAR1(B)
- B(f);SBLOCK::P=Q
- S(b);SBLOCK::B(C),XR(d)
- S(e);N_GUARD,SBLOCK::S(H),XR(j)
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).