MESON Chess Problem Database
Problem Display
PID: 250019 (B1N1KN2/pPPpnp2/5P2/3kp1pQ/1PRBR3/rP5P/7q/7b w - - 0 1)
Yarovenko, Anatoly
Uralski Problemist, 2008
#2
14 + 10
SOLUTION
- SOUND
- Sets
- 1...Qg1
- 2.Rxe5#
- 1...Qa2
- 2.Rxe5#
- 1...Qb2
- 2.Rxe5#
- 1...Qc2
- 2.Rxe5#
- 1...Qd2
- 2.Rxe5#
- 1...Qf2
- 2.Rxe5#
- 1...Qg2
- 2.Rxe5#
- 1...Qxh3
- 2.Rxe5#
- 1...Bxe4
- 2.Qxf7#
- 1...Sf5
- 2.b8Q#
- 2.b8S#
- 2.b8B#
- 2.b8R#
- 1...Sg6
- 2.b8Q#
- 2.b8S#
- 2.b8B#
- 2.b8R#
- 1...Sxc8
- 2.bxc8S#
- 1...Sg8
- 2.b8Q#
- 2.b8S#
- 2.b8B#
- 2.b8R#
- 1...Qg1
- Tries
- 1.Sxe7+?
- 1...Kd6
- 2.c8S#
- 1...Kxe4!
- 1...Kd6
- 1.Ba1?
- threat
- 2.Qxf7#
- 1...Qxh3
- 2.Rxe5#
- 1...Sxc8
- 2.bxc8S#
- 1...Sg6
- 2.b8Q#
- 2.b8S#
- 2.b8B#
- 2.b8R#
- 1...Ra6!
- threat
- 1.Bb2?
- threat
- 2.Qxf7#
- 1...Qxh3
- 2.Rxe5#
- 1...Sxc8
- 2.bxc8S#
- 1...Sg6
- 2.b8Q#
- 2.b8S#
- 2.b8B#
- 2.b8R#
- 1...Ra6!
- threat
- 1.Bf2?
- threat
- 2.Qd1#
- 2.Qxf7#
- 1...Qxf2
- 2.Qxf7#
- 1...Rxb3
- 2.Qxf7#
- 1...Bxe4
- 2.Rc5#
- 2.Qxf7#
- 1...Sxc8
- 2.Qd1#
- 2.bxc8S#
- 1...Ra6
- 2.Qd1#
- 1...Qg1
- 2.Qxf7#
- 1...Qg3
- 2.Qxf7#
- 1...Qf4
- 2.Qxf7#
- 1...Ra1
- 2.Qxf7#
- 1...Ra2
- 2.Qxf7#
- 1...Bf3
- 2.Qxf7#
- 1...Sf5
- 2.Qxf7#
- 2.b8Q#
- 2.b8S#
- 2.b8B#
- 2.b8R#
- 1...Sc6
- 2.Qxf7#
- 1...Sg6
- 2.Qd1#
- 2.b8Q#
- 2.b8S#
- 2.b8B#
- 2.b8R#
- 1...g4
- 2.Red4#
- 2.Qxf7#
- 1...Qxh3!
- threat
- 1.Bc3?
- threat
- 2.Qxf7#
- 1...Qxh3
- 2.Rxe5#
- 1...Sxc8
- 2.bxc8S#
- 1...Sg6
- 2.b8Q#
- 2.b8S#
- 2.b8B#
- 2.b8R#
- 1...Ra6!
- threat
- 1.Be3?
- threat
- 2.Qxf7#
- 1...Qxh3
- 2.Qd1#
- 1...Sxc8
- 2.bxc8S#
- 1...Sg6
- 2.b8Q#
- 2.b8S#
- 2.b8B#
- 2.b8R#
- 1...Ra6!
- threat
- 1.Bxe5?
- threat
- 2.Sxe7#
- 2.Qxf7#
- 1...Qxh3
- 2.Sxe7#
- 1...Bxe4
- 2.Rc5#
- 1...Sxc8
- 2.Qxf7#
- 2.bxc8Q#
- 2.bxc8S#
- 2.bxc8B#
- 2.bxc8R#
- 2.b8Q#
- 2.b8S#
- 2.b8B#
- 2.b8R#
- 1...Ra6
- 2.Sxe7#
- 1...Sf5
- 2.Qxf7#
- 2.b8Q#
- 2.b8S#
- 2.b8B#
- 2.b8R#
- 1...Sc6
- 2.Qxf7#
- 1...Sg6
- 2.b8Q#
- 2.b8S#
- 2.b8B#
- 2.b8R#
- 1...Sg8
- 2.Qxf7#
- 2.b8Q#
- 2.b8S#
- 2.b8B#
- 2.b8R#
- 1...Qxe5!
- threat
- 1.Bb6?
- threat
- 2.Qxf7#
- 1...Sxc8
- 2.bxc8S#
- 1...Sg6
- 2.b8Q#
- 2.b8S#
- 2.b8B#
- 2.b8R#
- 1...Qxh3!
- threat
- 1.Re3?
- threat
- 2.Qxf7#
- 1...Qxh3
- 2.Rxe5#
- 1...Sxc8
- 2.bxc8S#
- 1...Sg6
- 2.b8Q#
- 2.b8S#
- 2.b8B#
- 2.b8R#
- 1...Ra6!
- threat
- 1.Rg4?
- threat
- 2.Rc5#
- 2.Qxf7#
- 1...Sxc8
- 2.bxc8S#
- 1...exd4
- 2.Rc5#
- 1...Ra6
- 2.Rc5#
- 1...Qc2
- 2.Qxf7#
- 1...Ra5
- 2.Qxf7#
- 1...Be4
- 2.Qxf7#
- 1...Sg6
- 2.Rc5#
- 2.b8Q#
- 2.b8S#
- 2.b8B#
- 2.b8R#
- 1...e4
- 2.Qxf7#
- 1...d6
- 2.Sxe7#
- 2.Qxf7#
- 1...Qf4!
- threat
- 1.Qf3?
- threat
- 2.Rc5#
- 2.Rxe5#
- 1...Rxb3
- 2.Rc5#
- 1...Sxc8
- 2.bxc8S#
- 1...exd4
- 2.Rc5#
- 1...Qc2
- 2.Rxe5#
- 1...Ra5
- 2.Rxe5#
- 1...d6
- 2.Sxe7#
- 2.Rxe5#
- 1...Bxf3!
- threat
- 1.Qh7?
- threat
- 2.Rc5#
- 1...Bxe4
- 2.Qxf7#
- 1...Sxc8
- 2.bxc8S#
- 1...Sf5
- 2.b8Q#
- 2.b8S#
- 2.b8B#
- 2.b8R#
- 1...Sg6
- 2.b8Q#
- 2.b8S#
- 2.b8B#
- 2.b8R#
- 1...Qc2
- 2.Rxe5#
- 1...d6
- 2.Sxe7#
- 1...Ra5!
- threat
- 1.Sxe7+?
- Keys
- 1.Bc5!
- threat
- 2.Sxe7#
- 1...Kc6
- 2.b8Q#
- 1...Sxc8
- 2.bxc8Q#
- 2.bxc8S#
- 2.bxc8B#
- 2.bxc8R#
- 2.b8Q#
- 2.b8S#
- 2.b8B#
- 2.b8R#
- 1...Sf5
- 2.b8Q#
- 2.b8S#
- 2.b8B#
- 2.b8R#
- 1...Sc6
- 2.Qxf7#
- 1...Sg6
- 2.b8Q#
- 2.b8S#
- 2.b8B#
- 2.b8R#
- 1...Sg8
- 2.b8Q#
- 2.b8S#
- 2.b8B#
- 2.b8R#
- threat
- 1.Bc5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 10
- Sets
- Q(b);N_GUARD::R1(F),XP(e)
- Q(b);N_GUARD,XP(B)::R1(F),XP(e)
- B(a);SBLOCK,XR(F)::QAB(G),XP(j)
- S(i);OGATE,XS(L)::PXS(i)=S
- Tries
- Try
- S(L);CHECK,XS(i)
- Vars
- K(d);N_GUARD,P-FLIGHT::P=S
- Refutation
- K(d);S_FLIGHT,XR(F)
- Try
- B(E);
- Threat
- QAB(G),XP(j)
- Vars
- Q(b);N_GUARD,XP(B)::R1(F),XP(e)
- S(i);OGATE,XS(L)::PXS(i)=S
- Refutation
- R(c);
- Try
- B(E);
- Threat
- QAB(G),XP(j)
- Vars
- Q(b);N_GUARD,XP(B)::R1(F),XP(e)
- S(i);OGATE,XS(L)::PXS(i)=S
- Refutation
- R(c);
- Try
- B(E);
- Threat
- DUALS(2)
- Vars
- Q(b);XB(E)::QAB(G),XP(j)
- R(c);XP(A)::QAB(G),XP(j)
- R(c);::QAR(G)
- Q(b);::QAB(G),XP(j)
- R(c);::QAB(G),XP(j)
- B(a);::QAB(G),XP(j)
- S(i);::QAB(G),XP(j)
- Refutation
- Q(b);XP(B)
- Try
- B(E);
- Threat
- QAB(G),XP(j)
- Vars
- Q(b);N_GUARD,XP(B)::R1(F),XP(e)
- S(i);OGATE,XS(L)::PXS(i)=S
- Refutation
- R(c);
- Try
- B(E);
- Threat
- QAB(G),XP(j)
- Vars
- Q(b);N_GUARD,XP(B)::QAR(G)
- S(i);OGATE,XS(L)::PXS(i)=S
- Refutation
- R(c);
- Try
- B(E);XP(e)
- Threat
- DUALS(2)
- Vars
- Q(b);XP(B)::S(L),XS(i)
- B(a);SBLOCK,XR(F)::R1(D)
- R(c);::S(L),XS(i)
- S(i);::QAB(G),XP(j)
- Refutation
- Q(b);XB(E)
- Try
- B(E);
- Threat
- QAB(G),XP(j)
- Vars
- S(i);OGATE,XS(L)::PXS(i)=S
- Refutation
- Q(b);XP(B)
- Try
- R(F);
- Threat
- QAB(G),XP(j)
- Vars
- Q(b);N_GUARD,XP(B)::R1(F),XP(e)
- S(i);OGATE,XS(L)::PXS(i)=S
- Refutation
- R(c);
- Try
- R(F);
- Threat
- DUALS(2)
- Vars
- S(i);OGATE,XS(L)::PXS(i)=S
- P(e);P_SPINP(f),XB(E)::R1(D)
- R(c);::R1(D)
- Q(b);::QAB(G),XP(j)
- R(c);::QAB(G),XP(j)
- B(a);::QAB(G),XP(j)
- P(e);P_SPINP(f)::QAB(G),XP(j)
- Refutation
- Q(b);
- Try
- Q(G);
- Threat
- DUALS(2)
- Vars
- R(c);XP(A)::R1(D)
- S(i);OGATE,XS(L)::PXS(i)=S
- P(e);XB(E)::R1(D)
- Q(b);::QAB(G)+R(F),DCHECK,XP(e)
- R(c);::QAB(G)+R(F),DCHECK,XP(e)
- Refutation
- B(a);XQ(G)
- Try
- Q(G);
- Threat
- R1(D)
- Vars
- B(a);SBLOCK,XR(F)::QAB(G),XP(j)
- S(i);OGATE,XS(L)::PXS(i)=S
- Q(b);N_GUARD::R1(F),XP(e)
- P(h);SBLOCK::S(L),XS(i)
- Refutation
- R(c);
- Try
- Actual
- B(E);
- Threat
- S(L),XS(i)
- Vars
- K(d);S_CUTS(i),S_FLIGHT::P=Q
- S(i);SBLOCK::QAB(G),XP(j)
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Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
CSS/Javascript (jQuery, Bootstrap & DataTables).