MESON Chess Problem Database
Problem Display
PID: 71705 (2r5/p1b4Q/k3b2R/1R4n1/2B5/1P6/K7/8 w - - 0 1)
Gavrilov, Constantin Grigorievich
Revista Romana de Sah, 1935
#2
6 + 6
SOLUTION
- SOUND
- Sets
- 1...Bh2
- 2.Qb7#
- 1...Bg3
- 2.Qb7#
- 1...Bf4
- 2.Qb7#
- 1...Ba5
- 2.Qb7#
- 1...Be5
- 2.Qb7#
- 1...Bd6
- 2.Qb7#
- 1...Bb8
- 2.Qb7#
- 1...Bd8
- 2.Qb7#
- 1...Bh2
- Tries
- 1.Rxe6+?
- 1...Bb6
- 2.Rc5#
- 1...Bd6
- 2.Qb7#
- 1...Sxe6!
- 1...Bb6
- 1.Qxc7?
- threat
- 2.Rb4#
- 2.Ra5#
- 2.Rc5#
- 2.Rd5#
- 2.Re5#
- 2.Rf5#
- 2.Rxg5#
- 2.Rb7#
- 2.Rb8#
- 2.Qa5#
- 2.Qb7#
- 2.Qxc8#
- 1...Ra8
- 2.Rb4#
- 2.Ra5#
- 2.Rc5#
- 2.Rd5#
- 2.Re5#
- 2.Rf5#
- 2.Rxg5#
- 2.Rb7#
- 2.Rb8#
- 2.Qa5#
- 2.Qd6#
- 2.Qc6#
- 2.Qb7#
- 1...Rb8
- 2.Ra5#
- 2.Rb7#
- 2.Rxb8#
- 2.Qa5#
- 1...Rd8
- 2.Rb4#
- 2.Ra5#
- 2.Rc5#
- 2.Rd5#
- 2.Re5#
- 2.Rf5#
- 2.Rxg5#
- 2.Rb7#
- 2.Rb8#
- 2.Qa5#
- 2.Qc6#
- 2.Qb7#
- 1...Re8
- 2.Rb4#
- 2.Ra5#
- 2.Rc5#
- 2.Rd5#
- 2.Re5#
- 2.Rf5#
- 2.Rxg5#
- 2.Rb7#
- 2.Rb8#
- 2.Qa5#
- 2.Qd6#
- 2.Qc6#
- 2.Qb7#
- 1...Rf8
- 2.Rb4#
- 2.Ra5#
- 2.Rc5#
- 2.Rd5#
- 2.Re5#
- 2.Rf5#
- 2.Rxg5#
- 2.Rb7#
- 2.Rb8#
- 2.Qa5#
- 2.Qd6#
- 2.Qc6#
- 2.Qb7#
- 1...Rg8
- 2.Rb4#
- 2.Ra5#
- 2.Rc5#
- 2.Rd5#
- 2.Re5#
- 2.Rf5#
- 2.Rxg5#
- 2.Rb7#
- 2.Rb8#
- 2.Qa5#
- 2.Qd6#
- 2.Qc6#
- 2.Qb7#
- 1...Rh8
- 2.Rb4#
- 2.Ra5#
- 2.Rc5#
- 2.Rd5#
- 2.Re5#
- 2.Rf5#
- 2.Rxg5#
- 2.Rb7#
- 2.Rb8#
- 2.Qa5#
- 2.Qd6#
- 2.Qc6#
- 2.Qb7#
- 1...Sf3
- 2.Rb4#
- 2.Ra5#
- 2.Rc5#
- 2.Rd5#
- 2.Re5#
- 2.Rf5#
- 2.Rg5#
- 2.Rbh5#
- 2.Rb7#
- 2.Rb8#
- 2.Rxe6#
- 2.Qa5#
- 2.Qb7#
- 2.Qxc8#
- 1...Sh3
- 2.Rb4#
- 2.Ra5#
- 2.Rc5#
- 2.Rd5#
- 2.Re5#
- 2.Rf5#
- 2.Rg5#
- 2.Rbh5#
- 2.Rb7#
- 2.Rb8#
- 2.Rxe6#
- 2.Qa5#
- 2.Qb7#
- 2.Qxc8#
- 1...Se4
- 2.Rb4#
- 2.Ra5#
- 2.Rc5#
- 2.Rd5#
- 2.Re5#
- 2.Rf5#
- 2.Rg5#
- 2.Rbh5#
- 2.Rb7#
- 2.Rb8#
- 2.Qa5#
- 2.Qb7#
- 2.Qxc8#
- 1...Sf7
- 2.Rb4#
- 2.Ra5#
- 2.Rc5#
- 2.Rd5#
- 2.Re5#
- 2.Rf5#
- 2.Rg5#
- 2.Rbh5#
- 2.Rb7#
- 2.Rb8#
- 2.Qa5#
- 2.Qb7#
- 2.Qxc8#
- 1...Sh7
- 2.Rb4#
- 2.Ra5#
- 2.Rc5#
- 2.Rd5#
- 2.Re5#
- 2.Rf5#
- 2.Rg5#
- 2.Rbh5#
- 2.Rb7#
- 2.Rb8#
- 2.Rxe6#
- 2.Qa5#
- 2.Qb7#
- 2.Qxc8#
- 1...Rxc7!
- threat
- 1.Rxe6+?
- Keys
- 1.b4!
- threat
- 2.Rb8#
- 1...Rb8
- 2.Rxb8#
- 1...Bh2
- 2.Qb7#
- 1...Bg3
- 2.Qb7#
- 1...Bf4
- 2.Qb7#
- 1...Ba5
- 2.Qb7#
- 1...Be5
- 2.Qb7#
- 1...Bb6
- 2.Ra5#
- 1...Bd6
- 2.Qb7#
- 1...Bb8
- 2.Qb7#
- 1...Bd8
- 2.Qb7#
- threat
- 1.b4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- B(e);OGATE::QAB1(F)
- B(e);N_SPINB(c),OGATE::QAB1(F)
- Tries
- Try
- R(E);CHECK,XB(c)
- Vars
- B(e);P_SPINB(e)::B(C)+R(D)
- B(e);OGATE,P_SPINB(e)::QAB1(F)
- Refutation
- S(a);XR(E)
- Try
- Q(F);XB(e)
- Threat
- DUALS(12)
- Refutation
- R(f);XQ(F)
- Try
- Actual
- P(B);P_SPINB(C)
- Threat
- B(C)+R(D)
- Vars
- R(f);::B(C)+R(D),XR(f)
- B(e);OGATE::QAB1(F)
- B(e);N_SPINB(c),SBLOCK::B(C)+R(D),DCHECK
- B(e);N_SPINB(c),OGATE::QAB1(F)
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).