MESON Chess Problem Database
Problem Display
PID: 51482 (8/B6B/8/1QN5/2pkpP2/K1N1rR2/1n2pPn1/4b3 w - - 0 1)
Morra, Juan Carlos
The Guardian, 1961
#2
9 + 8
SOLUTION
- SOUND
- Sets
- 1...Kxc3
- 2.Qxb2#
- 1...Rxc3+
- 2.Sb3#
- 1...Rd3
- 2.Sa4#
- 2.Sxe4#
- 1...Bxc3
- 2.Qd7#
- 1...exf3
- 2.Sa4#
- 1...Kxc3
- Tries
- 1.Qc6?
- threat
- 2.Qf6#
- 1...Rxc3+
- 2.Sb3#
- 1...Bxc3
- 2.Qd7#
- 2.Qd6#
- 1...exf3
- 2.Sa4#
- 1...Sd3
- 2.Sb5#
- 1...Kxc3!
- threat
- 1.fxe3+?
- 1...Kxc3
- 2.Qxb2#
- 1...Sxe3!
- 1...Kxc3
- 1.Qc6?
- Keys
- 1.Qb7!
- threat
- 2.Qg7#
- 1...Rxc3+
- 2.Sb3#
- 1...Kxc3
- 2.Qxb2#
- 1...Bxc3
- 2.Qd7#
- 1...exf3
- 2.Sa4#
- 1...Sd3
- 2.Sb5#
- threat
- 1.Qb7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- K(g);OGATEB,P_SPINR(e),S_FLIGHT,XS(C)::QAB1(F),XS(b)
- R(e);CHECK,XS(C)::B(H)+S(G),DCHECK
- B(a);SBLOCK,XS(C)::QAR(F)
- P(h);XR(D)::B(H)+S(G)
- Tries
- Try
- Q(F);
- Threat
- QAB(F)
- Vars
- R(e);CHECK,XS(C)::B(H)+S(G),DCHECK
- P(h);XR(D)::B(H)+S(G)
- S(b);N_PINS(C)::S(C)
- Refutation
- K(g);P_SPINR(e),S_FLIGHT,XS(C)
- Try
- P(A);CHECK,N_SPINS(C),XR(e)
- Vars
- K(g);S_FLIGHT,XS(C)::QAB1(F),XS(b)
- Refutation
- S(d);XP(A)
- Try
- Actual
- Q(F);
- Threat
- QAB(F)
- Vars
- R(e);CHECK,XS(C)::B(H)+S(G),DCHECK
- K(g);OGATEB,P_SPINR(e),S_FLIGHT,XS(C)::QAB1(F),XS(b)
- B(a);SBLOCK,XS(C)::QAR(F)
- P(h);XR(D)::B(H)+S(G)
- S(b);N_PINS(C)::S(C)
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).