MESON Chess Problem Database
Problem Display
PID: 229222 (NB4Bn/KQP2r2/P2p2p1/2p3P1/PPkp4/8/2P5/3N4 w - - 0 1)
Toth, Gyula
Nepszava, 1926
#2
12 + 7
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...d3
- 2.Qe4#
- 1...cxb4
- 2.Qc6#
- 2.Qb5#
- 2.c8Q#
- 2.c8R#
- 1...d5
- 2.Qb5#
- 1...d3
- Tries
- 1.Bxf7+?
- 1...d5
- 2.Bxd5#
- 2.Qb5#
- 1...Sxf7!
- 1...d5
- 1.Qf3?
- threat
- 2.Qb3#
- 1...cxb4
- 2.Qc6#
- 1...d3
- 2.Qe4#
- 1...Kxb4!
- threat
- 1.Qc6?
- 1...d3
- 2.Qe4#
- 1...d5
- 2.Qb5#
- 2.Qxc5#
- 1...Kxb4!
- 1...d3
- 1.bxc5?
- 1...Kxc5
- 2.Qb5#
- 1...dxc5
- 2.Qb3#
- 1...d5
- 2.Qb5#
- 1...d3!
- 1...Kxc5
- 1.c8R?
- 1...d5
- 2.Rxc5#
- 1...d3!
- 1...d5
- 1.Bxf7+?
- Keys
- 1.c8Q!
- 1...d3
- 2.Qg4#
- 1...d5
- 2.Qxc5#
- 1...d3
- 1.c8Q!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 2
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- P(b);OGATEB::QAR2(H)
- P(d);N_SPINR(f),SBLOCK::QAB1(H)
- Tries
- Try
- B(L);CHECK,XR(f)
- Refutation
- S(g);XB(L)
- Try
- Q(H);P_SPINP(I)
- Threat
- QAB1(H)
- Vars
- P(c);OGATEB,SBLOCK,XP(D)::QAR2(H)
- P(b);OGATEB::QAR2(H)
- Refutation
- K(a);N_SPINR(f),P-FLIGHT,XP(D)
- Try
- Q(H);P_PINP(c),P_SPINP(I)
- Vars
- P(b);OGATEB::QAR2(H)
- Refutation
- K(a);N_SPINP(c),N_SPINR(f),P-FLIGHT,XP(D)
- Try
- P(D);XP(c)
- Vars
- K(a);N_SPINR(f),P-FLIGHT,XP(D)::QAR1(H)
- P(d);SBLOCK,XP(D)::QAB1(H)
- P(d);N_SPINR(f),SBLOCK::QAB1(H)
- Refutation
- P(b);
- Try
- P(I);P_PINP(c),P_SPINQ(H)
- Vars
- P(d);N_GUARD,N_SPINR(f)::R1(I),XP(c)
- Refutation
- P(b);
- Try
- Actual
- P(I);P_PINP(c),P_SPINQ(H)
- Vars
- P(b);OGATEB::QAR(I)
- P(d);N_GUARD,N_SPINR(f)::QAR1(I),XP(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).