MESON Chess Problem Database
Problem Display
PID: 243822 (B2BK3/1N1Pp3/2k5/4R3/p2P4/q7/3n4/8 w - - 0 1)
Chepizhni, Viktor Ivanovich
Shakhmaty v SSSR, 1963
#2
7 + 5
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qb2
- 2.Rc5#
- 1...Qc5
- 2.Rxc5#
- 1...Qd6
- 2.Sa5#
- 1...Qa1
- 2.Rc5#
- 1...Qa2
- 2.Rc5#
- 1...Qb3
- 2.Rc5#
- 1...Qd3
- 2.Rc5#
- 1...Qe3
- 2.Rc5#
- 1...Qf3
- 2.Rc5#
- 1...Qg3
- 2.Rc5#
- 1...Qh3
- 2.Rc5#
- 1...Qb2
- Tries
- 1.Sc5+?
- 1...Kd6
- 2.Rd5#
- 2.Re6#
- 1...Kb5!
- 1...Kd6
- 1.Ra5?
- threat
- 2.d5#
- 1...Qc5
- 2.Rxc5#
- 1...Qd6
- 2.Sc5#
- 1...Qa2
- 2.Rc5#
- 1...Qb3
- 2.Rc5#
- 1...Qd3
- 2.Rc5#
- 1...Qf3
- 2.Rc5#
- 1...e6!
- threat
- 1.Rd5?
- threat
- 2.Sa5#
- 2.Sd6#
- 1...Qc5
- 2.Sd6#
- 2.Rxc5#
- 1...Qb2
- 2.Sa5#
- 2.Rc5#
- 1...Qb4
- 2.Sa5#
- 1...Qd6
- 2.Sa5#
- 2.Sxd6#
- 1...Qb3
- 2.Sa5#
- 2.Rc5#
- 1...Kxd5!
- threat
- 1.Sc5+?
- Keys
- 1.Ba5!
- threat
- 2.d8S#
- 1...Qc5
- 2.Rxc5#
- 1...Qd6
- 2.Sd8#
- threat
- 1.Ba5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 0
- REMOVED MATES = 9
- Sets
- Q(b);N_GUARD::R1(B)
- Q(b);N_GUARD::R1(B),XQ(b)
- Q(b);SBLOCK::B(E)+S(C),DCHECK
- Tries
- Try
- S(C);CHECK
- Refutation
- K(d);S_FLIGHT
- Try
- R(B);
- Threat
- P(A)
- Vars
- Q(b);N_GUARD::R1(B),XQ(b)
- Q(b);SBLOCK::B(E)+S(C)
- Q(b);N_GUARD::R1(B)
- Refutation
- P(e);
- Try
- R(B);
- Threat
- DUALS(2)
- Vars
- Q(b);::B(E)+S(C),DCHECK
- Refutation
- K(d);S_FLIGHT,XR(B)
- Try
- Actual
- B(F);
- Threat
- P=S
- Vars
- Q(b);N_GUARD::R1(B),XQ(b)
- Q(b);SBLOCK::B(E)+S(C),DCHECK
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).