MESON Chess Problem Database
Problem Display
PID: 165243 (7k/6b1/8/6R1/R7/5K2/3Q4/8 w - - 0 1)
Zakhodyakin, Gleb Nikolaevich
Vecherni Praha, 1965
#2
4 + 2
| 15148 | Sadier Collection | 2017 |
SOLUTION
- SOUND
- Sets
- 1...Ba1
- 2.Rh4#
- 2.Qh2#
- 1...Bb2
- 2.Rh4#
- 2.Qh2#
- 1...Bc3
- 2.Rh4#
- 2.Qh2#
- 1...Bd4
- 2.Qh2#
- 1...Be5
- 2.Rh4#
- 1...Bf6
- 2.Rh4#
- 2.Qh2#
- 1...Ba1
- Tries
- 1.Rh4+?
- 1...Bh6
- 2.Rxh6#
- 1...Kg8!
- 1...Bh6
- 1.Ra8+?
- 1...Bf8
- 2.Qh2#
- 1...Kh7!
- 1...Bf8
- 1.Qc3?
- threat
- 2.Qxg7#
- 1...Kh7
- 2.Qxg7#
- 1...Kg8
- 2.Qxg7#
- 1...Bxc3
- 2.Rh4#
- 1...Be5
- 2.Rh4#
- 1...Bf6
- 2.Rh4#
- 1...Bd4!
- threat
- 1.Qa2?
- 1...Ba1
- 2.Rh4#
- 2.Qg8#
- 2.Qh2#
- 1...Bb2
- 2.Rh4#
- 2.Qg8#
- 1...Bc3
- 2.Rh4#
- 2.Qg8#
- 2.Qh2#
- 1...Bd4
- 2.Qg8#
- 2.Qh2#
- 1...Be5
- 2.Rh4#
- 2.Qg8#
- 1...Bf6
- 2.Rh4#
- 2.Qg8#
- 2.Qh2#
- 1...Bh6
- 2.Qg8#
- 1...Bf8
- 2.Qg8#
- 1...Kh7!
- 1...Ba1
- 1.Qh2+?
- 1...Bh6
- 2.Qxh6#
- 1...Kg8!
- 1...Bh6
- 1.Qd4?
- threat
- 2.Qxg7#
- 1...Kh7
- 2.Qxg7#
- 1...Kg8
- 2.Qxg7#
- 1...Be5
- 2.Qh4#
- 1...Bf6
- 2.Qh4#
- 1...Bxd4!
- threat
- 1.Qd5?
- 1...Bh6
- 2.Qg8#
- 1...Ba1
- 2.Rh4#
- 2.Qg8#
- 1...Bb2
- 2.Rh4#
- 2.Qg8#
- 1...Bc3
- 2.Rh4#
- 2.Qg8#
- 1...Bd4
- 2.Qg8#
- 1...Be5
- 2.Rh4#
- 2.Qg8#
- 1...Bf6
- 2.Rh4#
- 2.Qg8#
- 1...Bf8
- 2.Qg8#
- 1...Kh7!
- 1...Bh6
- 1.Qd8+?
- 1...Bf8
- 2.Rh4#
- 1...Kh7!
- 1...Bf8
- 1.Rh4+?
- Keys
- 1.Qb2!
- threat
- 2.Qxg7#
- 1...Kh7
- 2.Qxg7#
- 1...Kg8
- 2.Qxg7#
- 1...Bxb2
- 2.Rh4#
- 1...Bc3
- 2.Rh4#
- 2.Qh2#
- 1...Bd4
- 2.Qh2#
- 1...Be5
- 2.Rh4#
- 1...Bf6
- 2.Rh4#
- 2.Qh2#
- threat
- 1.Qb2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- B(a);N_GUARD::QAR(A)
- B(a);N_GUARD::R(C)
- Tries
- Try
- R(C);CHECK
- Vars
- B(a);N_GUARD,P_SPINB(a)::R(C),XB(a)
- Refutation
- K(b);P-FLIGHT,P_SPINB(a)
- Try
- R(C);CHECK
- Vars
- B(a);P_SPINB(a)::QAR(A)
- Refutation
- K(b);P-FLIGHT
- Try
- Q(A);P_PINB(a)
- Threat
- QAB1(A),XB(a)
- Vars
- K(b);N_SPINB(a),P-FLIGHT::QAR1(A),XB(a)
- K(b);P-FLIGHT::QAR1(A),XB(a)
- B(a);N_SPINB(a),XQ(A)::R(C)
- B(a);::R(C)
- Refutation
- B(a);
- Try
- Q(A);
- Vars
- B(a);::QAR1(A)
- Refutation
- K(b);P-FLIGHT
- Try
- Q(A);CHECK
- Vars
- B(a);N_GUARD,P_SPINB(a)::QAR2(A),XB(a)
- Refutation
- K(b);P-FLIGHT,P_SPINB(a)
- Try
- Q(A);P_PINB(a)
- Threat
- QAB1(A),XB(a)
- Vars
- K(b);N_SPINB(a),P-FLIGHT::QAR1(A),XB(a)
- K(b);P-FLIGHT::QAR1(A),XB(a)
- B(a);N_GUARD::QAR(A)
- Refutation
- B(a);N_SPINB(a),XQ(A)
- Try
- Q(A);
- Vars
- B(a);::QAR1(A)
- Refutation
- K(b);P-FLIGHT
- Try
- Q(A);CHECK
- Vars
- B(a);P_SPINB(a)::R(C)
- Refutation
- K(b);P-FLIGHT
- Try
- Actual
- Q(A);P_PINB(a)
- Threat
- QAB1(A),XB(a)
- Vars
- K(b);N_SPINB(a),P-FLIGHT::QAR1(A),XB(a)
- K(b);P-FLIGHT::QAR1(A),XB(a)
- B(a);N_SPINB(a),XQ(A)::R(C)
- B(a);N_GUARD::QAR(A)
- B(a);::R(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).