MESON Chess Problem Database
Problem Display
PID: 238150 (2K5/8/1pk5/2P5/2Q5/2Rp4/8/8 w - - 0 1)
Hermanson, Halvar
Schakend Nederland, 1985
#2
4 + 3
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...bxc5
- 2.Qxc5#
- 1...b5
- 2.Qe6#
- 2.Qe4#
- 1...bxc5
- Tries
- 1.Rc1?
- 1...bxc5
- 2.Qxc5#
- 1...b5
- 2.Qe6#
- 2.Qe4#
- 1...d2!
- 1...bxc5
- 1.Ra3?
- 1...bxc5
- 2.Ra6#
- 1...b5
- 2.Ra6#
- 1...d2!
- 1...bxc5
- 1.Rb3?
- threat
- 2.Rxb6#
- 1...bxc5
- 2.Qe6#
- 1...b5!
- threat
- 1.Qa4+?
- 1...b5
- 2.Qe4#
- 2.Qa8#
- 1...Kd5!
- 1...b5
- 1.Qd4?
- threat
- 2.Qd7#
- 1...bxc5
- 2.Qxc5#
- 1...Kb5!
- threat
- 1.Rc1?
- Keys
- 1.Rxd3!
- threat
- 2.Rd6#
- 1...bxc5
- 2.Qa6#
- threat
- 1.Rxd3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- P(b);OGATE,P_SPINP(b),XP(C)::QAR1(B),XP(b)
- Tries
- Try
- R(A);
- Vars
- P(b);OGATE,P_SPINP(b),XP(C)::QAR1(B),XP(b)
- Refutation
- P(a);
- Try
- R(A);
- Vars
- P(b);OGATEB,P_SPINP(b),XP(C)::R(A)
- P(b);OGATEB::R(A)
- Refutation
- P(a);
- Try
- R(A);
- Threat
- R1(A),XP(b)
- Vars
- P(b);P_SPINP(b),SBLOCK,XP(C)::QAR2(B)
- Refutation
- P(b);
- Try
- Q(B);CHECK
- Refutation
- K(c);S_FLIGHT
- Try
- Q(B);
- Threat
- QAB1(B)
- Vars
- P(b);OGATE,P_SPINP(b),XP(C)::QAR1(B),XP(b)
- Refutation
- K(c);S_FLIGHT
- Try
- Actual
- R(A);XP(a)
- Threat
- R1(A)
- Vars
- P(b);OGATEB,P_SPINP(b),SBLOCK,XP(C)::QAR2(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).