MESON Chess Problem Database
Problem Display
PID: 17963 (2r5/1n6/QK4nB/1P2RNq1/7p/1P1k3N/2RPbP2/1Bb5 w - - 0 1)
Fleck, Ferenc
1st Prize, Maroczy MT, 1952
#2
12 + 8
SOLUTION
- SOUND
- Sets
- 1...Qe3+
- 2.Rxe3#
- 1...Qf6+
- 2.Rc6#
- 1...Qe7
- 2.Rc3#
- 2.Rc4#
- 2.Rcc5#
- 2.Rc6#
- 2.Rc7#
- 2.Rxc8#
- 1...Qd8+
- 2.Rc7#
- 1...Qg1
- 2.Rc3#
- 2.Rc4#
- 2.Rcc5#
- 2.Rc6#
- 2.Rc7#
- 2.Rxc8#
- 2.Re3#
- 1...Qg2
- 2.Rc3#
- 2.Rc4#
- 2.Rcc5#
- 2.Rc6#
- 2.Rc7#
- 2.Rxc8#
- 2.Re3#
- 1...Qg3
- 2.Rc3#
- 2.Rc4#
- 2.Rcc5#
- 2.Rc6#
- 2.Rc7#
- 2.Rxc8#
- 1...Qg4
- 2.Rc3#
- 2.Rc4#
- 2.Rcc5#
- 2.Rc6#
- 2.Rc7#
- 2.Rxc8#
- 2.Re3#
- 1...Qxf5
- 2.Rc4#
- 1...Qh5
- 2.Rc3#
- 2.Rc4#
- 2.Rcc5#
- 2.Rc6#
- 2.Rc7#
- 2.Rxc8#
- 2.Re3#
- 1...Rc6+
- 2.bxc6#
- 1...Ra8
- 2.Ra2#
- 2.Rb2#
- 1...Rb8
- 2.Ra2#
- 2.Rb2#
- 1...Rd8
- 2.Ra2#
- 2.Rb2#
- 1...Re8
- 2.Ra2#
- 2.Rb2#
- 1...Rf8
- 2.Ra2#
- 2.Rb2#
- 1...Rg8
- 2.Ra2#
- 2.Rb2#
- 1...Rh8
- 2.Ra2#
- 2.Rb2#
- 1...Bxd2
- 2.Rc4#
- 2.Rcc5#
- 2.Rc6#
- 2.Rc7#
- 2.Rxc8#
- 1...Sf4
- 2.Re3#
- 1...Sc5
- 2.Ra2#
- 2.Rb2#
- 1...Qe3+
- Tries
- 1.Sf4+?
- 1...Sxf4
- 2.Re3#
- 1...Qxf4!
- 1...Sxf4
- 1.Sxg5?
- threat
- 2.Re3#
- 2.Rd5#
- 1...Rc6+
- 2.bxc6#
- 1...Rxc2
- 2.Rd5#
- 1...Bxd2
- 2.Rc4#
- 2.Rcc5#
- 2.Rc6#
- 2.Rc7#
- 2.Rxc8#
- 2.Rd5#
- 1...Rc4
- 2.Re3#
- 1...Rc5
- 2.Re3#
- 1...Rd8
- 2.Ra2#
- 2.Rb2#
- 2.Re3#
- 1...Re8
- 2.Ra2#
- 2.Rb2#
- 2.Rd5#
- 1...Bb2
- 2.Re3#
- 1...Bd1
- 2.Re3#
- 1...Bf1
- 2.Re3#
- 1...Bf3
- 2.Re3#
- 1...Bg4
- 2.Re3#
- 1...Bh5
- 2.Re3#
- 1...Sf4
- 2.Re3#
- 1...Se7
- 2.Re3#
- 1...Sxe5!
- threat
- 1.Bxg5?
- threat
- 2.Rc3#
- 2.Rc4#
- 2.Rcc5#
- 2.Rc6#
- 2.Rc7#
- 2.Rxc8#
- 2.Re3#
- 1...Rc6+
- 2.Rxc6#
- 2.bxc6#
- 1...Bxd2
- 2.Rc4#
- 2.Rcc5#
- 2.Rc6#
- 2.Rc7#
- 2.Rxc8#
- 1...Sxe5
- 2.Rc3#
- 2.Rc4#
- 2.Rc5#
- 2.Rc6#
- 2.Rc7#
- 2.Rxc8#
- 1...Rc3
- 2.Rxc3#
- 2.Re3#
- 1...Rc4
- 2.Rc3#
- 2.Rxc4#
- 2.Re3#
- 1...Rc5
- 2.Rc3#
- 2.Rc4#
- 2.Rcxc5#
- 2.Re3#
- 1...Rc7
- 2.Rc3#
- 2.Rc4#
- 2.Rcc5#
- 2.Rc6#
- 2.Rxc7#
- 2.Re3#
- 1...Ra8
- 2.Rxc1#
- 2.Ra2#
- 2.Rb2#
- 2.Rc3#
- 2.Rc4#
- 2.Rcc5#
- 2.Rc6#
- 2.Rc7#
- 2.Rc8#
- 2.Re3#
- 1...Rb8
- 2.Rxc1#
- 2.Ra2#
- 2.Rb2#
- 2.Rc3#
- 2.Rc4#
- 2.Rcc5#
- 2.Rc6#
- 2.Rc7#
- 2.Rc8#
- 2.Re3#
- 1...Rd8
- 2.Rxc1#
- 2.Ra2#
- 2.Rb2#
- 2.Rc3#
- 2.Rc4#
- 2.Rcc5#
- 2.Rc6#
- 2.Rc7#
- 2.Rc8#
- 2.Re3#
- 1...Re8
- 2.Rxc1#
- 2.Ra2#
- 2.Rb2#
- 2.Rc3#
- 2.Rc4#
- 2.Rcc5#
- 2.Rc6#
- 2.Rc7#
- 2.Rc8#
- 1...Rf8
- 2.Rxc1#
- 2.Ra2#
- 2.Rb2#
- 2.Rc3#
- 2.Rc4#
- 2.Rcc5#
- 2.Rc6#
- 2.Rc7#
- 2.Rc8#
- 2.Re3#
- 1...Rg8
- 2.Rxc1#
- 2.Ra2#
- 2.Rb2#
- 2.Rc3#
- 2.Rc4#
- 2.Rcc5#
- 2.Rc6#
- 2.Rc7#
- 2.Rc8#
- 2.Re3#
- 1...Rh8
- 2.Rxc1#
- 2.Ra2#
- 2.Rb2#
- 2.Rc3#
- 2.Rc4#
- 2.Rcc5#
- 2.Rc6#
- 2.Rc7#
- 2.Rc8#
- 2.Re3#
- 1...Bd1
- 2.Rc3#
- 2.Re3#
- 1...Sf4
- 2.Sxf4#
- 2.Re3#
- 1...Sc5
- 2.Rxc1#
- 2.Ra2#
- 2.Rb2#
- 2.Rc3#
- 2.Rc4#
- 2.Rcxc5#
- 2.Re3#
- 1...Rxc2!
- threat
- 1.Sf4+?
- Keys
- 1.f3!
- threat
- 2.Sf2#
- 2.Rd5#
- 1...Qe3+
- 2.Rxe3#
- 1...Qf6+
- 2.Rc6#
- 1...Qd8+
- 2.Rc7#
- 1...Qg1+
- 2.Rcc5#
- 1...Rc6+
- 2.bxc6#
- 1...Qxf5
- 2.Rc4#
- 1...Rxc2
- 2.Rd5#
- 1...Bxf3
- 2.Sf2#
- 1...Sxe5
- 2.Sf2#
- 1...Qf4
- 2.Sf2#
- 1...Qg2
- 2.Rc3#
- 2.Rc4#
- 2.Rcc5#
- 2.Rc6#
- 2.Rc7#
- 2.Rxc8#
- 2.Re3#
- 2.Rd5#
- 1...Qg3
- 2.Rc3#
- 2.Rc4#
- 2.Rcc5#
- 2.Rc6#
- 2.Rc7#
- 2.Rxc8#
- 2.Re3#
- 2.Rd5#
- 1...Qg4
- 2.Sf2#
- 2.Rc3#
- 2.Rc4#
- 2.Rcc5#
- 2.Rc6#
- 2.Rc7#
- 2.Rxc8#
- 2.Re3#
- 1...Rc4
- 2.Sf2#
- 1...Rc5
- 2.Sf2#
- 1...Rd8
- 2.Sf2#
- 2.Ra2#
- 2.Rb2#
- 1...Bb2
- 2.Sf2#
- 1...Bd1
- 2.Sf2#
- 1...Bf1
- 2.Sf2#
- 1...Sf4
- 2.Sf2#
- 2.Re3#
- 1...Se7
- 2.Sf2#
- threat
- 1.f3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 11
- REMOVED MATES = 1
- Sets
- Q(e);CHECK,N_GUARD::R1(H),XQ(e)
- Q(e);CHECK::B(A)+R(B)
- Q(e);XS(I)::B(A)+R(B)
- R(h);CHECK,OGATE::QAB(J)+P(G),XR(h)
- S(f);S_CUTQ(e)::R1(H)
- Tries
- Try
- S(F);CHECK
- Vars
- S(f);XS(F)::R1(H)
- Refutation
- Q(e);XS(F)
- Try
- S(F);XQ(e)
- Threat
- DUALS(2)
- Vars
- R(h);CHECK,OGATE::QAB(J)+P(G),XR(h)
- R(h);P_SPINR(h),XR(B)::R(H)
- R(h);::R1(H)
- B(a);::R1(H)
- B(b);::R1(H)
- S(f);::R1(H)
- Refutation
- S(f);XR(H)
- Try
- B(L);XQ(e)
- Threat
- DUALS(7)
- Refutation
- R(h);P_SPINR(h),XR(B)
- Try
- Actual
- P(D);
- Threat
- DUALS(2)
- Vars
- Q(e);CHECK,N_GUARD::R1(H),XQ(e)
- Q(e);CHECK::B(A)+R(B)
- R(h);CHECK,OGATE::QAB(J)+P(G),XR(h)
- Q(e);XS(I)::B(A)+R(B)
- R(h);P_SPINR(h),XR(B)::R(H)
- B(b);XP(D)::S(F)
- S(f);XR(H)::S(F)
- Q(e);::S(F)
- R(h);::S(F)
- B(a);::S(F)
- B(b);::S(F)
- S(f);::S(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).