MESON Chess Problem Database
Problem Display
PID: 144653 (1b2n3/3q1Bn1/3p1B2/4N1RN/r1ppk1p1/r7/b4PP1/3R2K1 w - - 0 1)
Shire, David J
The Problemist Supplement, 2011
#2
9 + 12
SOLUTION
- SOUND
- Sets
- 1...Bb3
- 2.Re1#
- 1...Sf5
- 2.Rxg4#
- 1...c3
- 2.Re1#
- 1...Bb3
- Tries
- 1.Sf3?
- threat
- 2.Bd5#
- 2.Rxd4#
- 1...Qxf7
- 2.Rxd4#
- 1...Sxh5
- 2.Rxd4#
- 1...Sxf6
- 2.Rxd4#
- 1...Qb5
- 2.Rxd4#
- 1...Qf5
- 2.Rxd4#
- 1...Qc6
- 2.Rxd4#
- 1...Qe6
- 2.Rxd4#
- 1...Qa7
- 2.Bd5#
- 1...Qb7
- 2.Rxd4#
- 1...Rd3
- 2.Bd5#
- 1...Ra5
- 2.Rxd4#
- 1...Ba7
- 2.Bd5#
- 1...Sf5
- 2.Rxg4#
- 1...Se6
- 2.Bg6#
- 1...Sc7
- 2.Rxd4#
- 1...d3
- 2.Sd2#
- 2.Bd5#
- 2.Re1#
- 1...d5
- 2.Rxd4#
- 1...c3!
- threat
- 1.Sxc4?
- threat
- 2.Bd5#
- 2.Rxd4#
- 1...Qxf7
- 2.Rxd4#
- 1...Rxc4
- 2.Bd5#
- 1...Bxc4
- 2.Rxd4#
- 1...Sxh5
- 2.Rxd4#
- 1...Qb5
- 2.Rxd4#
- 1...Qf5
- 2.Rxd4#
- 1...Qc6
- 2.Rxd4#
- 1...Qe6
- 2.Rxd4#
- 1...Qa7
- 2.Bd5#
- 1...Qb7
- 2.Rxd4#
- 1...Rd3
- 2.Bd5#
- 1...Ra5
- 2.Rxd4#
- 1...Ba7
- 2.Bd5#
- 1...Sf5
- 2.Rxg4#
- 1...Se6
- 2.Bg6#
- 1...Sc7
- 2.Rxd4#
- 1...d3
- 2.Sd2#
- 2.Bd5#
- 2.Re1#
- 1...d5
- 2.Rxd4#
- 1...Sxf6!
- threat
- 1.Sxg4?
- threat
- 2.Bd5#
- 2.Rxd4#
- 1...Qxf7
- 2.Rxd4#
- 1...Sxh5
- 2.Rxd4#
- 1...Sxf6
- 2.Sgxf6#
- 1...Qb5
- 2.Rxd4#
- 1...Qf5
- 2.Rxd4#
- 1...Qc6
- 2.Rxd4#
- 1...Qe6
- 2.Rxd4#
- 1...Qa7
- 2.Bd5#
- 1...Qb7
- 2.Rxd4#
- 1...Rd3
- 2.Bd5#
- 1...Ra5
- 2.Rxd4#
- 1...Ba7
- 2.Bd5#
- 1...Se6
- 2.Bg6#
- 1...Sc7
- 2.Rxd4#
- 1...c3
- 2.f3#
- 1...d3
- 2.Bd5#
- 2.Re1#
- 2.f3#
- 1...d5
- 2.Rxd4#
- 1...Sf5!
- threat
- 1.Sc6?
- threat
- 2.Bd5#
- 2.Rxd4#
- 1...Qxc6
- 2.Rxd4#
- 1...Qxf7
- 2.Rxd4#
- 1...Sxh5
- 2.Rxd4#
- 1...Sxf6
- 2.Rxd4#
- 1...Qf5
- 2.Rxd4#
- 1...Qe6
- 2.Rxd4#
- 1...Qa7
- 2.Bd5#
- 1...Rd3
- 2.Bd5#
- 1...Ra5
- 2.Rxd4#
- 1...Ba7
- 2.Bd5#
- 1...Sf5
- 2.Rxg4#
- 1...Se6
- 2.Bg6#
- 1...Sc7
- 2.Rxd4#
- 1...d3
- 2.Bd5#
- 2.Re1#
- 1...d5
- 2.Rxd4#
- 1...c3!
- threat
- 1.Sg6?
- threat
- 2.Bd5#
- 2.Rxd4#
- 1...Qxf7
- 2.Rxd4#
- 1...Sxf6
- 2.Sxf6#
- 1...c3
- 2.Sg3#
- 1...Qb5
- 2.Rxd4#
- 1...Qf5
- 2.Rxd4#
- 1...Qc6
- 2.Rxd4#
- 1...Qe6
- 2.Rxd4#
- 1...Qa7
- 2.Bd5#
- 1...Qb7
- 2.Rxd4#
- 1...Rd3
- 2.Bd5#
- 1...Ra5
- 2.Rxd4#
- 1...Ba7
- 2.Bd5#
- 1...Sf5
- 2.Rxg4#
- 1...Sc7
- 2.Rxd4#
- 1...d3
- 2.Sg3#
- 2.Bd5#
- 2.Re1#
- 1...d5
- 2.Rxd4#
- 1...Se6!
- threat
- 1.Sxd7?
- threat
- 2.Bd5#
- 2.Rxd4#
- 1...Sxh5
- 2.Rxd4#
- 1...Sxf6
- 2.Sdxf6#
- 1...Rd3
- 2.Bd5#
- 1...Ra5
- 2.Rxd4#
- 1...Ba7
- 2.Bd5#
- 1...Sf5
- 2.Rxg4#
- 1...Se6
- 2.Bg6#
- 1...Sc7
- 2.Rxd4#
- 1...d3
- 2.Bd5#
- 2.Re1#
- 1...d5
- 2.Sc5#
- 2.Bxd5#
- 2.Rxd4#
- 1...c3!
- threat
- 1.Sg3+?
- 1...Kf4
- 2.Sg6#
- 2.Rxd4#
- 1...Rxg3!
- 1...Kf4
- 1.Rxg4+?
- 1...Kf5
- 2.Rf4#
- 1...Qxg4!
- 1...Kf5
- 1.Sf3?
- Keys
- 1.Sd3!
- threat
- 2.Sg3#
- 2.Bd5#
- 1...Qxf7
- 2.Sg3#
- 1...Rxd3
- 2.Bd5#
- 1...Sxh5
- 2.Bd5#
- 1...Sxf6
- 2.Sg3#
- 2.Sxf6#
- 1...cxd3
- 2.Re1#
- 1...Qb5
- 2.Sg3#
- 1...Qf5
- 2.Sg3#
- 1...Qc6
- 2.Sg3#
- 1...Qe6
- 2.Sg3#
- 1...Qb7
- 2.Sg3#
- 1...Ra5
- 2.Sg3#
- 1...Sf5
- 2.Rxg4#
- 1...Se6
- 2.Sg3#
- 2.Bg6#
- 1...Sc7
- 2.Sg3#
- 1...c3
- 2.Sg3#
- 1...g3
- 2.Sxg3#
- 2.Bd5#
- 1...d5
- 2.Sc5#
- threat
- 1.Sd3!
This is a version of 144652
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 12
- REMOVED MATES = 1
- Sets
- B(a);S_CUTR(b)::R(A)
- S(j);SBLOCK,S_CUTQ(i)::R(F),XP(g)
- P(d);S_CUTR(b)::R(A)
- Tries
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- Q(i);XB(I)::R1(A),XP(e)
- S(j);XS(G)::R1(A),XP(e)
- S(l);XB(H)::R1(A),XP(e)
- Q(i);::R1(A),XP(e)
- Q(i);::B(I)
- R(b);::B(I)
- R(c);::R1(A),XP(e)
- B(k);::B(I)
- S(j);SBLOCK,S_CUTQ(i)::R(F),XP(g)
- S(j);N_GUARD,S_CUTQ(i)::B(I)
- S(l);::R1(A),XP(e)
- P(h);::R1(A),XP(e)
- Refutation
- P(d);
- Try
- S(E);XP(d)
- Threat
- DUALS(2)
- Vars
- Q(i);XB(I)::R1(A),XP(e)
- R(c);XS(E)::B(I)
- B(a);XS(E)::R1(A),XP(e)
- S(j);XS(G)::R1(A),XP(e)
- Q(i);::R1(A),XP(e)
- Q(i);::B(I)
- R(b);::B(I)
- R(c);::R1(A),XP(e)
- B(k);::B(I)
- S(j);SBLOCK,S_CUTQ(i)::R(F),XP(g)
- S(j);N_GUARD,S_CUTQ(i)::B(I)
- S(l);::R1(A),XP(e)
- P(h);::R1(A),XP(e)
- Refutation
- S(l);XB(H)
- Try
- S(E);XP(g)
- Threat
- DUALS(2)
- Vars
- Q(i);XB(I)::R1(A),XP(e)
- S(j);XS(G)::R1(A),XP(e)
- S(l);XB(H)::S(E),XS(l)
- Q(i);::R1(A),XP(e)
- Q(i);::B(I)
- R(b);::B(I)
- R(c);::R1(A),XP(e)
- B(k);::B(I)
- S(j);N_GUARD,S_CUTQ(i)::B(I)
- S(l);::R1(A),XP(e)
- P(d);S_CUTR(b)::P(C)
- P(h);::R1(A),XP(e)
- Refutation
- S(j);
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- Q(i);XS(E)::R1(A),XP(e)
- Q(i);XB(I)::R1(A),XP(e)
- S(j);XS(G)::R1(A),XP(e)
- S(l);XB(H)::R1(A),XP(e)
- Q(i);::R1(A),XP(e)
- Q(i);::B(I)
- R(b);::B(I)
- R(c);::R1(A),XP(e)
- B(k);::B(I)
- S(j);SBLOCK,S_CUTQ(i)::R(F),XP(g)
- S(j);N_GUARD,S_CUTQ(i)::B(I)
- S(l);::R1(A),XP(e)
- P(h);::R1(A),XP(e)
- Refutation
- P(d);
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- Q(i);XB(I)::R1(A),XP(e)
- S(l);XB(H)::S(G),XS(l)
- P(d);S_CUTR(b)::S(G)
- Q(i);::R1(A),XP(e)
- Q(i);::B(I)
- R(b);::B(I)
- R(c);::R1(A),XP(e)
- B(k);::B(I)
- S(j);SBLOCK,S_CUTQ(i)::R(F),XP(g)
- S(l);::R1(A),XP(e)
- P(h);::R1(A),XP(e)
- Refutation
- S(j);
- Try
- S(E);XQ(i)
- Threat
- DUALS(2)
- Vars
- S(j);XS(G)::R1(A),XP(e)
- S(l);XB(H)::S(E),XS(l)
- R(b);::B(I)
- R(c);::R1(A),XP(e)
- B(k);::B(I)
- S(j);SBLOCK::R(F),XP(g)
- S(j);N_GUARD::B(I)
- S(l);::R1(A),XP(e)
- Refutation
- P(d);
- Try
- S(G);CHECK
- Refutation
- R(b);P_PINP(D),XS(G)
- Try
- R(F);CHECK,XP(g)
- Vars
- K(f);S_FLIGHT::R1(F)
- Refutation
- Q(i);P_PINP(D),XR(F)
- Try
- Actual
- S(E);
- Threat
- DUALS(2)
- Vars
- Q(i);XB(I)::S(G)
- R(b);XS(E)::B(I)
- S(j);XS(G)::B(I)
- P(d);SBLOCK,XS(E)::R(A)
- Q(i);::S(G)
- R(c);::S(G)
- S(j);SBLOCK,S_CUTQ(i)::R(F),XP(g)
- S(l);::S(G)
- P(d);::S(G)
- P(h);N_GUARD::S(E)
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).