MESON Chess Problem Database
Problem Display
PID: 203479 (8/3pR3/N1Nk4/1p3Pp1/5q2/6B1/1K6/7Q w - - 0 1)
Nagy, Odon
Comm., Uj Nemezdek, 1924
#2
7 + 5
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Qe5+
- 2.Bxe5#
- 1...g4
- 2.Bxf4#
- 1...Qe5+
- Tries
- 1.Re2?
- threat
- 2.Rd2#
- 1...Qe5+
- 2.Bxe5#
- 1...dxc6
- 2.Qd1#
- 1...Qxg3!
- threat
- 1.Re3?
- threat
- 2.Rd3#
- 1...Qe5+
- 2.Bxe5#
- 1...dxc6
- 2.Qd1#
- 1...Qxg3!
- threat
- 1.Rf7?
- threat
- 2.Rf6#
- 1...Qe5+
- 2.Bxe5#
- 1...dxc6!
- threat
- 1.Rg7?
- threat
- 2.Rg6#
- 1...Qe5+
- 2.Bxe5#
- 1...dxc6!
- threat
- 1.Rh7?
- threat
- 2.Rh6#
- 1...Qe5+
- 2.Bxe5#
- 1...dxc6!
- threat
- 1.Qc1?
- threat
- 2.Qc5#
- 1...Kd5
- 2.Qc5#
- 1...Qe5+!
- threat
- 1.Re2?
- Keys
- 1.Re4!
- threat
- 2.Rd4#
- 1...Kd5
- 2.Rd4#
- 1...Kxc6
- 2.Re6#
- 1...dxc6
- 2.Qd1#
- threat
- 1.Re4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 2
- Sets
- Q(a);CHECK,OGATE::B(C),XQ(a)
- P(c);N_GUARD::B(C),XQ(a)
- Tries
- Try
- R(G);
- Threat
- R(G)
- Vars
- Q(a);CHECK,OGATE::B(C),XQ(a)
- P(e);SBLOCK,XS(F)::QAR(A)
- Refutation
- Q(a);N_SPINQ(a),XB(C)
- Try
- R(G);
- Threat
- R(G)
- Vars
- Q(a);CHECK,OGATE::B(C),XQ(a)
- P(e);SBLOCK,XS(F)::QAR(A)
- Refutation
- Q(a);N_SPINQ(a),XB(C)
- Try
- R(G);
- Threat
- R(G)
- Vars
- Q(a);CHECK,OGATE::B(C),XQ(a)
- Refutation
- P(e);XS(F)
- Try
- R(G);
- Threat
- R(G)
- Vars
- Q(a);CHECK,OGATE::B(C),XQ(a)
- Refutation
- P(e);XS(F)
- Try
- R(G);
- Threat
- R(G)
- Vars
- Q(a);CHECK,OGATE::B(C),XQ(a)
- Refutation
- P(e);XS(F)
- Try
- Q(A);
- Threat
- QAB1(A)
- Vars
- K(d);N_SPINQ(a),P-FLIGHT::QAR1(A)
- Refutation
- Q(a);CHECK
- Try
- Actual
- R(G);
- Threat
- R(G)
- Vars
- K(d);N_SPINQ(a),P-FLIGHT::QAB(A)+R(G),DCHECK
- K(d);N_SPINQ(a),P-FLIGHT,XS(F)::QAB(A)+R(G),DCHECK
- P(e);SBLOCK,XS(F)::QAR(A)
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).