MESON Chess Problem Database
Problem Display
PID: 242385 (4K3/4p2B/2pRp3/2n1k1p1/2P2R2/3p4/2PQ4/8 w - - 0 1)
Morra, Juan Carlos
Schakend Nederland, 1965
#2
7 + 7
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...dxc2
- 2.Qd4#
- 1...dxc2
- Tries
- 1.Kxe7?
- 1...dxc2
- 2.Qd4#
- 1...gxf4
- 2.Qc3#
- 1...Sb3
- 2.Re4#
- 2.Rxe6#
- 2.Qe3#
- 1...Sa4
- 2.Re4#
- 2.Rxe6#
- 2.Qe3#
- 1...Se4
- 2.Rxe4#
- 1...Sa6
- 2.Re4#
- 2.Rxe6#
- 2.Qe3#
- 1...Sb7
- 2.Re4#
- 2.Rxe6#
- 2.Qe3#
- 1...Sd7
- 2.Re4#
- 2.Rxe6#
- 2.Qe3#
- 1...g4!
- 1...dxc2
- 1.Kxe7?
- Keys
- 1.Rf6!
- 1...Kxd6
- 2.Qh2#
- 1...Kxf6
- 2.Qc3#
- 1...dxc2
- 2.Qd4#
- 1...exd6
- 2.Qc3#
- 1...exf6
- 2.Qh2#
- 1...Se4
- 2.Rfxe6#
- 1...Sb3
- 2.Rfxe6#
- 1...Sa4
- 2.Rfxe6#
- 1...Sa6
- 2.Rfxe6#
- 1...Sb7
- 2.Rfxe6#
- 1...Sd7
- 2.Rfxe6#
- 1...g4
- 2.Qf4#
- 1...Kxd6
- 1.Rf6!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 11
- REMOVED MATES = 0
- Sets
- P(a);OGATE,XP(A)::QAB1(B)
- Tries
- Try
- K(G);P-FLIGHT,XP(g)
- Vars
- P(a);OGATE,XP(A)::QAB1(B)
- P(d);SBLOCK,XR(D)::QAB(B)
- S(b);N_GUARD::R1(D),XS(b)
- Refutation
- P(d);
- Try
- Actual
- R(D);
- Vars
- K(c);P_SPINP(a),S_FLIGHT,XR(E)::QAB(B)
- K(c);P_SPINP(f),S_FLIGHT,XR(D)::QAB(B)
- P(a);OGATE,XP(A)::QAB1(B)
- P(g);SBLOCK,XR(E)::QAB(B)
- P(g);SBLOCK,XR(D)::QAB(B)
- S(b);N_GUARD::R1(D),XP(f)
- P(d);N_GUARD::QAB1(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).