MESON Chess Problem Database
Problem Display
PID: 171017 (k7/rNKp4/P7/1Q6/8/8/8/8 w - - 0 1)
Makaronets, Leonid
Minimat, 1996
#2
4 + 3
| 145 | StrateGems | 2017 |
SOLUTION
- SOUND
- Sets
- 1...Rxa6
- 2.Qxa6#
- 1...Rxb7+
- 2.Qxb7#
- 1...d5
- 2.Qe8#
- 1...d6
- 2.Qe8#
- 1...Rxa6
- Tries
- 1.Qf1?
- threat
- 2.Qf8#
- 1...Rxa6
- 2.Qxa6#
- 1...Rxb7+!
- threat
- 1.Qe2?
- threat
- 2.Qe8#
- 1...Rxa6
- 2.Qxa6#
- 1...Rxb7+!
- threat
- 1.Qc6?
- 1...Rxb7+
- 2.Qxb7#
- 1...Rxa6
- 2.Qxa6#
- 1...d5
- 2.Qe8#
- 1...d6
- 2.Qe8#
- 1...dxc6!
- 1...Rxb7+
- 1.Qb2?
- threat
- 2.Qh8#
- 1...Rxb7+
- 2.Qxb7#
- 1...Rxa6!
- threat
- 1.Qd5?
- threat
- 2.Qg8#
- 1...Rxb7+
- 2.Qxb7#
- 1...Rxa6!
- threat
- 1.Qf1?
- Keys
- 1.Qa4!
- 1...Rxb7+
- 2.axb7#
- 1...Rxa6
- 2.Qxa6#
- 1...d5
- 2.Qe8#
- 1...d6
- 2.Qe8#
- 1...Rxb7+
- 1.Qa4!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- R(a);N_PINS(C),OGATE,XP(B)::QAR2(A),XR(a)
- R(a);CHECK,OGATE,XS(C)::QAB1(A),XR(a)
- P(b);OGATE::QAR(A)
- Tries
- Try
- Q(A);
- Threat
- QAR(A)
- Vars
- R(a);N_PINS(C),OGATE,XP(B)::QAR2(A),XR(a)
- Refutation
- R(a);CHECK,XS(C)
- Try
- Q(A);
- Threat
- QAR(A)
- Vars
- R(a);N_PINS(C),OGATE,XP(B)::QAR2(A),XR(a)
- Refutation
- R(a);CHECK,XS(C)
- Try
- Q(A);
- Vars
- R(a);CHECK,OGATE,P_SPINR(a),XS(C)::QAB1(A),XR(a)
- R(a);N_PINS(C),OGATE,XP(B)::QAR2(A),XR(a)
- P(b);OGATE::QAR(A)
- Refutation
- P(b);XQ(A)
- Try
- Q(A);
- Threat
- QAB1(A)
- Vars
- R(a);CHECK,OGATE,XS(C)::QAB1(A),XR(a)
- Refutation
- R(a);N_PINS(C),XP(B)
- Try
- Q(A);
- Threat
- QAR(A)
- Vars
- R(a);CHECK,OGATE,P_SPINR(a),XS(C)::QAB1(A),XR(a)
- Refutation
- R(a);N_PINS(C),XP(B)
- Try
- Actual
- Q(A);
- Vars
- R(a);CHECK,OGATE,XS(C)::QAR(A)+P(B)DCHECK,XR(a)
- R(a);N_PINS(C),OGATE,P_SPINR(a),XP(B)::QAR2(A),XR(a)
- P(b);OGATE::QAR(A)
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).