MESON Chess Problem Database
Problem Display
PID: 245257 (2Q5/8/rpR5/k7/8/1K6/8/8 w - - 0 1)
Dikusarov, Andrey Nikolayovich
Sa ogneupory, 1988
#2
3 + 3
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...b5
- 2.Rxa6#
- 2.Qxa6#
- 1...b5
- Tries
- 1.Rc5+?
- 1...bxc5
- 2.Qxc5#
- 1...b5!
- 1...bxc5
- 1.Qg4?
- threat
- 2.Qa4#
- 2.Qb4#
- 1...Ra7
- 2.Qa4#
- 1...Ra8
- 2.Qa4#
- 1...b5
- 2.Qb4#
- 1...Kb5!
- threat
- 1.Qb7?
- 1...Ra7
- 2.Qxb6#
- 1...Ra8
- 2.Qxb6#
- 1...b5
- 2.Rxa6#
- 2.Qxa6#
- 1...Kb5!
- 1...Ra7
- 1.Qc7?
- threat
- 2.Rc5#
- 1...Ra7
- 2.Qxb6#
- 1...Ra8
- 2.Qxb6#
- 1...Kb5!
- threat
- 1.Rc5+?
- Keys
- 1.Qd8!
- threat
- 2.Rc5#
- 1...Kb5
- 2.Qd5#
- 1...Ra7
- 2.Qxb6#
- 1...Ra8
- 2.Qxb6#
- threat
- 1.Qd8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- Tries
- Try
- R(B);CHECK
- Vars
- P(c);OGATE,XR(B)::QAR2(C),XP(c)
- Refutation
- P(c);P_SPINP(c)
- Try
- Q(C);
- Threat
- DUALS(2)
- Vars
- R(b);::QAR1(C)
- P(c);::QAB1(C)
- Refutation
- K(a);P-FLIGHT
- Try
- Q(C);
- Vars
- R(b);N_GUARD::QAB1(C),XP(c)
- Refutation
- K(a);P-FLIGHT,P_SPINP(c)
- Try
- Q(C);P_PINP(c)
- Threat
- R(B)
- Vars
- R(b);N_GUARD::QAB1(C),XP(c)
- Refutation
- K(a);N_SPINP(c),P-FLIGHT
- Try
- Actual
- Q(C);P_PINP(c)
- Threat
- R(B)
- Vars
- K(a);N_SPINP(c),P-FLIGHT::QAR2(C)
- R(b);N_GUARD::QAB1(C),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).