MESON Chess Problem Database
Problem Display
PID: 256967 (8/1K3p2/1B1P1p2/3kp3/2N2R2/7Q/P7/8 w - - 0 1)
Onkoud, Abdelaziz
Buletin Problemistic, 1995
#2
7 + 4
| 15601 | Albrecht-Leiss-Degener Collection | 2022 |
SOLUTION
- SOUND
- Tries
- 1.Rxf6?
- threat
- 2.Qd3#
- 1...Kxc4
- 2.Qb3#
- 1...Ke4
- 2.Qf3#
- 1...e4!
- threat
- 1.Qg2+?
- 1...e4
- 2.Qxe4#
- 1...Ke6!
- 1...e4
- 1.Qd7?
- threat
- 2.Se3#
- 2.Qxf7#
- 1...e4
- 2.Qxf7#
- 1...exf4!
- threat
- 1.Qh1+?
- 1...e4
- 2.Qxe4#
- 1...Ke6!
- 1...e4
- 1.Qf3+?
- 1...e4
- 2.Qxe4#
- 1...Ke6!
- 1...e4
- 1.Rxf6?
- Keys
- 1.Rf5!
- 1...Kxc4
- 2.Qb3#
- 1...Ke4
- 2.Qf3#
- 1...Ke6
- 2.Rxe5#
- 1...Kxc4
- 1.Rf5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- Tries
- Try
- R(D);XP(c)
- Threat
- QAR2(B)
- Vars
- K(a);OGATEB,S_FLIGHT,XS(C)::QAB1(B)
- K(a);N_GUARD,S_CUTP(b),S_FLIGHT::QAB1(B)
- Refutation
- P(b);
- Try
- Q(B);CHECK
- Vars
- P(b);P_SPINP(b)::QAB1(B),XP(b)
- Refutation
- K(a);S_FLIGHT
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- P(b);::QAB(B),XP(d)
- Refutation
- P(b);XR(D)
- Try
- Q(B);CHECK
- Vars
- P(b);P_SPINP(b)::QAB1(B),XP(b)
- Refutation
- K(a);S_FLIGHT
- Try
- Q(B);CHECK
- Vars
- P(b);P_SPINP(b)::QAB1(B),XP(b)
- Refutation
- K(a);S_FLIGHT
- Try
- Actual
- R(D);P_PINP(b)
- Vars
- K(a);N_SPINP(b),OGATEB,S_FLIGHT,XS(C)::QAB1(B)
- K(a);N_GUARD,N_SPINP(b),S_FLIGHT::QAB1(B)
- K(a);N_GUARD,N_SPINP(b),S_FLIGHT::QAB(B)+R(D),DCHECK,XP(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).