MESON Chess Problem Database
Problem Display
PID: 225443 (R7/3p3k/6pp/1K1p3N/5P2/8/8/1Q6 w - - 0 1)
Didenko, Vladimir Vasilovich
Praca, 1997
#2
5 + 5
| 5454 | Near Snap | 2020 |
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Tries
- 1.Ka4?
- 1...d6
- 2.Qb7#
- 1...d4!
- 1...d6
- 1.Ka5?
- 1...d6
- 2.Qb7#
- 1...d4!
- 1...d6
- 1.Ka6?
- 1...d6
- 2.Qb7#
- 1...d4!
- 1...d6
- 1.Qa2?
- 1...g5
- 2.Qb1#
- 2.Qc2#
- 1...d4
- 2.Qf7#
- 2.Qg8#
- 1...d6
- 2.Qa7#
- 1...gxh5!
- 1...g5
- 1.Qc2?
- 1...d6
- 2.Qc7#
- 1...d4!
- 1...d6
- 1.Qf5?
- threat
- 2.Qxd7#
- 2.Qf7#
- 1...d6
- 2.Qd7#
- 2.Qf7#
- 1...gxf5!
- threat
- 1.Qe1?
- threat
- 2.Qe7#
- 1...g5
- 2.Qb1#
- 1...gxh5!
- threat
- 1.Qg1?
- 1...gxh5
- 2.Qg8#
- 1...g5
- 2.Qb1#
- 1...d6
- 2.Qa7#
- 1...d4!
- 1...gxh5
- 1.Ka4?
- Keys
- 1.f5!
- threat
- 2.fxg6#
- 1...gxf5
- 2.Qxf5#
- 1...gxh5
- 2.f6#
- 1...g5
- 2.f6#
- threat
- 1.f5!
Anticipated by 119410(1988)
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- Tries
- Try
- K(C);S_FLIGHT
- Vars
- P(d);OGATEB::QAR(A)
- Refutation
- P(a);
- Try
- K(C);P-FLIGHT
- Vars
- P(d);OGATEB::QAR(A)
- Refutation
- P(a);
- Try
- K(C);S_FLIGHT
- Vars
- P(d);OGATEB::QAR(A)
- Refutation
- P(a);
- Try
- Q(A);N_PINP(b)
- Vars
- P(d);OGATEB::QAB1(A)
- Refutation
- P(b);XS(D)
- Try
- Q(A);
- Vars
- P(d);OGATEB::QAR(A)
- Refutation
- P(a);
- Try
- Q(A);
- Threat
- DUALS(2)
- Refutation
- P(b);N_SPINP(b),XQ(A)
- Try
- Q(A);N_PINP(b)
- Threat
- QAR(A)
- Vars
- P(b);OGATEB::QAB(A)
- Refutation
- P(b);XS(D)
- Try
- Q(A);N_PINP(b)
- Vars
- P(b);OGATE,XS(D)::QAB1(A)
- P(b);OGATEB::QAB(A)
- P(d);OGATEB::QAB1(A)
- Refutation
- P(a);
- Try
- Actual
- P(B);N_PINP(b)
- Threat
- P(B),XP(b)
- Vars
- P(b);OGATE,P_SPINP(b),XP(B)::QAB(A),XP(b)
- P(b);XS(D)::QAB(A)+P(B)
- P(b);::QAB(A)+P(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).