MESON Chess Problem Database
Problem Display
PID: 11261 (6Q1/5p2/2pppP2/3kPP2/1P3P2/8/2NN1pPp/5Kbq w - - 0 1)
Feldmann, Tibor (aka Florian, Tibor)
2nd HM., Magyar Sakkvilag Fleck TT, 1937
#2
10 + 9
SOLUTION
- SOUND
- Sets
- 1...Qxg2+
- 2.Qxg2#
- 1...c5
- 2.Qa8#
- 1...dxe5
- 2.Qd8#
- 1...exf5
- 2.Qxf7#
- 1...Qxg2+
- Tries
- 1.Qxf7?
- threat
- 2.Qxe6#
- 1...c5
- 2.Qb7#
- 1...Qxg2+!
- threat
- 1.Qa8?
- threat
- 2.Qa2#
- 1...dxe5
- 2.Qd8#
- 1...Qxg2+!
- threat
- 1.Qb8?
- threat
- 2.Qxd6#
- 1...dxe5
- 2.Qxe5#
- 2.Qd8#
- 1...Qxg2+!
- threat
- 1.Qe8?
- 1...dxe5
- 2.Qd7#
- 2.Qd8#
- 1...exf5
- 2.Qxf7#
- 1...c5
- 2.Qa8#
- 1...Qxg2+!
- 1...dxe5
- 1.Qf8?
- threat
- 2.Qxd6#
- 1...dxe5
- 2.Qc5#
- 2.Qd8#
- 1...Qxg2+!
- threat
- 1.Qxf7?
- Keys
- 1.Qg3!
- threat
- 2.Qb3#
- 2.Qd3#
- 2.Qf3#
- 1...Qxg2+
- 2.Qxg2#
- 1...dxe5
- 2.Qd3#
- 1...exf5
- 2.Qb3#
- 1...c5
- 2.Qf3#
- threat
- 1.Qg3!
FEATURES
- Static
- TYPE = BLOCK_THREAT
- CHANGED MATES = 3
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- Q(b);CHECK,OGATE,XP(D)::QAB(J),XQ(b)
- P(f);OGATEB::QAB(J)
- P(g);OGATEB,XP(G)::QAR(J)
- P(h);OGATEB,P_SPINP(i),XP(H)::QAB(J),XP(i)
- Tries
- Try
- Q(J);P_PINP(h),XP(i)
- Threat
- QAB1(J),XP(h)
- Vars
- P(f);OGATEB::QAB(J)
- Refutation
- Q(b);CHECK,XP(D)
- Try
- Q(J);P_PINP(f)
- Threat
- QAB(J)
- Vars
- P(g);OGATEB,XP(G)::QAR(J)
- Refutation
- Q(b);CHECK,XP(D)
- Try
- Q(J);
- Threat
- QAR1(J),XP(g)
- Refutation
- Q(b);CHECK,XP(D)
- Try
- Q(J);
- Vars
- P(h);OGATEB,XP(H)::QAB(J),XP(i)
- P(f);OGATEB::QAB(J)
- Refutation
- Q(b);CHECK,XP(D)
- Try
- Q(J);
- Threat
- QAR1(J),XP(g)
- Refutation
- Q(b);CHECK,XP(D)
- Try
- Actual
- Q(J);
- Threat
- DUALS(3)
- Vars
- Q(b);CHECK,OGATE,XP(D)::QAB(J),XQ(b)
- P(g);XP(G)::QAR2(J)
- P(h);XP(H)::QAB(J)
- P(f);::QAB(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).