MESON Chess Problem Database
Problem Display
PID: 246106 (7Q/8/8/7K/6r1/4R1Pk/R7/8 w - - 0 1)
Zinoviev, Nikolai
Smena (Moscow), 1994
#2
5 + 2
| 5454 | Near Snap | 2021 |
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Rxg3
- 2.Qc8#
- 1...Ra4
- 2.g4#
- 1...Rb4
- 2.g4#
- 1...Rc4
- 2.g4#
- 1...Rd4
- 2.g4#
- 1...Rf4
- 2.gxf4#
- 1...Rh4+
- 2.gxh4#
- 1...Rg5+
- 2.Kxg5#
- 1...Rg6
- 2.g4#
- 1...Rg7
- 2.g4#
- 1...Rg8
- 2.g4#
- 1...Rxg3
- Tries
- 1.Rb2?
- 1...Rh4+
- 2.gxh4#
- 1...Rg5+
- 2.Kxg5#
- 1...Rxg3
- 2.Qc8#
- 1...Ra4
- 2.g4#
- 1...Rb4
- 2.g4#
- 1...Rc4
- 2.g4#
- 1...Rd4
- 2.g4#
- 1...Rf4
- 2.gxf4#
- 1...Rg6
- 2.g4#
- 1...Rg7
- 2.g4#
- 1...Rg8
- 2.g4#
- 1...Re4!
- 1...Rh4+
- 1.Rc2?
- 1...Rh4+
- 2.gxh4#
- 1...Rg5+
- 2.Kxg5#
- 1...Rxg3
- 2.Qc8#
- 1...Ra4
- 2.g4#
- 1...Rb4
- 2.g4#
- 1...Rc4
- 2.g4#
- 1...Rd4
- 2.g4#
- 1...Rf4
- 2.gxf4#
- 1...Rg6
- 2.g4#
- 1...Rg7
- 2.g4#
- 1...Rg8
- 2.g4#
- 1...Re4!
- 1...Rh4+
- 1.Rd2?
- 1...Rh4+
- 2.gxh4#
- 1...Rg5+
- 2.Kxg5#
- 1...Rxg3
- 2.Qc8#
- 1...Ra4
- 2.g4#
- 1...Rb4
- 2.g4#
- 1...Rc4
- 2.g4#
- 1...Rd4
- 2.g4#
- 1...Rf4
- 2.gxf4#
- 1...Rg6
- 2.g4#
- 1...Rg7
- 2.g4#
- 1...Rg8
- 2.g4#
- 1...Re4!
- 1...Rh4+
- 1.Rae2?
- 1...Rh4+
- 2.gxh4#
- 1...Rg5+
- 2.Kxg5#
- 1...Rxg3
- 2.Qc8#
- 1...Ra4
- 2.g4#
- 1...Rb4
- 2.g4#
- 1...Rc4
- 2.g4#
- 1...Rd4
- 2.g4#
- 1...Rf4
- 2.gxf4#
- 1...Rg6
- 2.g4#
- 1...Rg7
- 2.g4#
- 1...Rg8
- 2.g4#
- 1...Re4!
- 1...Rh4+
- 1.Rf2?
- 1...Rh4+
- 2.gxh4#
- 1...Rg5+
- 2.Kxg5#
- 1...Rxg3
- 2.Qc8#
- 1...Ra4
- 2.g4#
- 1...Rb4
- 2.g4#
- 1...Rc4
- 2.g4#
- 1...Rd4
- 2.g4#
- 1...Rf4
- 2.gxf4#
- 1...Rg6
- 2.g4#
- 1...Rg7
- 2.g4#
- 1...Rg8
- 2.g4#
- 1...Re4!
- 1...Rh4+
- 1.Qa1?
- threat
- 2.Qf1#
- 2.Qh1#
- 1...Rh4+
- 2.gxh4#
- 1...Rf4
- 2.Qh1#
- 2.gxf4#
- 1...Rg5+!
- threat
- 1.Qb2?
- threat
- 2.Qg2#
- 2.Qh2#
- 1...Rh4+
- 2.gxh4#
- 1...Rg5+!
- threat
- 1.Qf6?
- threat
- 2.Qf1#
- 1...Rh4+
- 2.Qxh4#
- 2.gxh4#
- 1...Rf4
- 2.gxf4#
- 1...Rg5+!
- threat
- 1.Qh6?
- 1...Rh4+
- 2.gxh4#
- 1...Rg5+
- 2.Kxg5#
- 1...Rxg3
- 2.Qe6#
- 1...Ra4
- 2.g4#
- 1...Rb4
- 2.g4#
- 1...Rc4
- 2.g4#
- 1...Rd4
- 2.g4#
- 1...Rf4
- 2.gxf4#
- 1...Rg6
- 2.g4#
- 1...Rg7
- 2.g4#
- 1...Rg8
- 2.g4#
- 1...Re4!
- 1...Rh4+
- 1.Qh7?
- 1...Rh4+
- 2.gxh4#
- 1...Rg5+
- 2.Kxg5#
- 1...Rxg3
- 2.Qf5#
- 2.Qd7#
- 1...Ra4
- 2.g4#
- 1...Rb4
- 2.g4#
- 1...Rc4
- 2.g4#
- 1...Rd4
- 2.g4#
- 1...Rf4
- 2.gxf4#
- 1...Rg6
- 2.g4#
- 1...Rg7
- 2.g4#
- 1...Rg8
- 2.g4#
- 1...Re4!
- 1...Rh4+
- 1.Qf8?
- threat
- 2.Qf1#
- 1...Rh4+
- 2.gxh4#
- 1...Rf4
- 2.gxf4#
- 1...Rg5+!
- threat
- 1.Rb2?
- Keys
- 1.Rf3!
- 1...Rh4+
- 2.gxh4#
- 1...Rg5+
- 2.Kxg5#
- 1...Rxg3
- 2.Qc8#
- 1...Re4
- 2.g4#
- 1...Ra4
- 2.g4#
- 1...Rb4
- 2.g4#
- 1...Rc4
- 2.g4#
- 1...Rd4
- 2.g4#
- 1...Rf4
- 2.gxf4#
- 1...Rg6
- 2.g4#
- 1...Rg7
- 2.g4#
- 1...Rg8
- 2.g4#
- 1...Rh4+
- 1.Rf3!
Anticipated by 7793(1993)
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- R(b);OGATEB,P_SPINR(b),XP(C)::QAB(E)
- R(b);OGATE::R(B)+P(C)
- R(b);OGATE::R(B)+P(C),XR(b)
- R(b);CHECK,OGATE::R(B)+P(C),XR(b)
- R(b);CHECK::QAR(E)+K(D),XR(b)
- Tries
- Try
- R(A);
- Vars
- R(b);CHECK,OGATE::R(B)+P(C),XR(b)
- R(b);CHECK::QAR(E)+K(D),XR(b)
- R(b);OGATEB,P_SPINR(b),XP(C)::QAB(E)
- R(b);OGATE,SBLOCK::R(B)+P(C)
- R(b);OGATE::R(B)+P(C)
- R(b);OGATE::R(B)+P(C),XR(b)
- Refutation
- R(b);
- Try
- R(A);
- Vars
- R(b);CHECK,OGATE::R(B)+P(C),XR(b)
- R(b);CHECK::QAR(E)+K(D),XR(b)
- R(b);OGATEB,P_SPINR(b),XP(C)::QAB(E)
- R(b);OGATE,SBLOCK::R(B)+P(C)
- R(b);OGATE::R(B)+P(C)
- R(b);OGATE::R(B)+P(C),XR(b)
- Refutation
- R(b);
- Try
- R(A);
- Vars
- R(b);CHECK,OGATE::R(B)+P(C),XR(b)
- R(b);CHECK::QAR(E)+K(D),XR(b)
- R(b);OGATEB,P_SPINR(b),XP(C)::QAB(E)
- R(b);OGATE,SBLOCK::R(B)+P(C)
- R(b);OGATE::R(B)+P(C)
- R(b);OGATE::R(B)+P(C),XR(b)
- Refutation
- R(b);
- Try
- R(A);
- Vars
- R(b);CHECK,OGATE::R(B)+P(C),XR(b)
- R(b);CHECK::QAR(E)+K(D),XR(b)
- R(b);OGATEB,P_SPINR(b),XP(C)::QAB(E)
- R(b);OGATE,SBLOCK::R(B)+P(C)
- R(b);OGATE::R(B)+P(C)
- R(b);OGATE::R(B)+P(C),XR(b)
- Refutation
- R(b);
- Try
- R(A);
- Vars
- R(b);CHECK,OGATE::R(B)+P(C),XR(b)
- R(b);CHECK::QAR(E)+K(D),XR(b)
- R(b);OGATEB,P_SPINR(b),XP(C)::QAB(E)
- R(b);OGATE,SBLOCK::R(B)+P(C)
- R(b);OGATE::R(B)+P(C)
- R(b);OGATE::R(B)+P(C),XR(b)
- Refutation
- R(b);
- Try
- Q(E);
- Threat
- DUALS(2)
- Vars
- R(b);CHECK,OGATE::R(B)+P(C),XR(b)
- Refutation
- R(b);CHECK
- Try
- Q(E);
- Threat
- DUALS(2)
- Vars
- R(b);CHECK,OGATE::R(B)+P(C),XR(b)
- Refutation
- R(b);CHECK
- Try
- Q(E);
- Threat
- QAB(E)
- Vars
- R(b);OGATE::R(B)+P(C),XR(b)
- Refutation
- R(b);CHECK
- Try
- Q(E);
- Vars
- R(b);CHECK,OGATE::R(B)+P(C),XR(b)
- R(b);CHECK::QAR(E)+K(D),XR(b)
- R(b);OGATEB,P_SPINR(b),XP(C)::QAB(E)
- R(b);OGATE::R(B)+P(C)
- R(b);OGATE::R(B)+P(C),XR(b)
- Refutation
- R(b);
- Try
- Q(E);
- Vars
- R(b);CHECK,OGATE::R(B)+P(C),XR(b)
- R(b);CHECK::QAR(E)+K(D),XR(b)
- R(b);OGATE::R(B)+P(C)
- R(b);OGATE::R(B)+P(C),XR(b)
- Refutation
- R(b);
- Try
- Q(E);
- Threat
- QAB(E)
- Vars
- R(b);CHECK,OGATE::R(B)+P(C),XR(b)
- R(b);OGATE::R(B)+P(C),XR(b)
- Refutation
- R(b);CHECK
- Try
- Actual
- R(B);
- Vars
- R(b);CHECK,OGATE::R(B)+P(C),XR(b)
- R(b);CHECK::QAR(E)+K(D),XR(b)
- R(b);OGATEB,P_SPINR(b),XP(C)::QAB(E)
- R(b);OGATE::R(B)+P(C)
- R(b);OGATE::R(B)+P(C),XR(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).