MESON Chess Problem Database
Problem Display
PID: 81643 (8/8/2p1K2b/ppP1P2r/n2k2N1/B2PN1Q1/4P3/2R5 w - - 0 1)
Lewis, Sally
The Problemist Supplement, 2008
#2
10 + 7
| 5454 | Near Snap | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rh1
- 2.Sf5#
- 1...Rh2
- 2.Sf5#
- 1...Rh3
- 2.Sf5#
- 1...Rh4
- 2.Sf5#
- 1...Rxe5+
- 2.Qxe5#
- 1...Rf5
- 2.Sxf5#
- 1...Rg5
- 2.Qf4#
- 1...Bxe3
- 2.Qxe3#
- 1...Bf4
- 2.Qxf4#
- 1...Bg5
- 2.Sf5#
- 1...Bg7
- 2.Qf4#
- 1...Bf8
- 2.Qf4#
- 1...Sb2
- 2.Bxb2#
- 1...Sc3
- 2.Sc2#
- 1...Sxc5+
- 2.Bxc5#
- 1...Sb6
- 2.Bb2#
- 1...b4
- 2.Rc4#
- 1...Rh1
- Tries
- 1.Kd6?
- 1...Rxe5
- 2.Qxe5#
- 1...Bxe3
- 2.Qxe3#
- 1...Sxc5
- 2.Bb2#
- 2.Bxc5#
- 1...Rh1
- 2.Sf5#
- 1...Rh2
- 2.Sf5#
- 1...Rh3
- 2.Sf5#
- 1...Rh4
- 2.Sf5#
- 1...Rf5
- 2.Sxf5#
- 1...Rg5
- 2.Qf4#
- 1...Bf4
- 2.Qxf4#
- 1...Bg5
- 2.Sf5#
- 1...Bg7
- 2.Qf4#
- 1...Sb2
- 2.Bxb2#
- 1...Sc3
- 2.Sc2#
- 1...Sb6
- 2.Bb2#
- 1...b4
- 2.Rc4#
- 1...Bf8+!
- 1...Rxe5
- 1.Sf2?
- 1...Rxe5+
- 2.Qxe5#
- 1...Sxc5+
- 2.Bxc5#
- 1...Rh1
- 2.Sf5#
- 1...Rh2
- 2.Sf5#
- 1...Rh3
- 2.Sf5#
- 1...Rh4
- 2.Sf5#
- 1...Rf5
- 2.Sxf5#
- 1...Rg5
- 2.Qf4#
- 1...Bf4
- 2.Qxf4#
- 1...Bg5
- 2.Sf5#
- 1...Bg7
- 2.Qf4#
- 1...Bf8
- 2.Qf4#
- 1...Sb2
- 2.Bxb2#
- 1...Sc3
- 2.Sc2#
- 1...Sb6
- 2.Bb2#
- 1...b4
- 2.Rc4#
- 1...Bxe3!
- 1...Rxe5+
- 1.Sf6?
- 1...Rxe5+
- 2.Qxe5#
- 1...Sxc5+
- 2.Bxc5#
- 1...Rh1
- 2.Sf5#
- 1...Rh2
- 2.Sf5#
- 1...Rh3
- 2.Sf5#
- 1...Rh4
- 2.Sf5#
- 1...Rf5
- 2.Sxf5#
- 1...Rg5
- 2.Qf4#
- 1...Bf4
- 2.Qxf4#
- 1...Bg5
- 2.Sf5#
- 1...Bg7
- 2.Qf4#
- 1...Bf8
- 2.Qf4#
- 1...Sb2
- 2.Bxb2#
- 1...Sc3
- 2.Sc2#
- 1...Sb6
- 2.Bb2#
- 1...b4
- 2.Rc4#
- 1...Bxe3!
- 1...Rxe5+
- 1.Sxh6?
- threat
- 2.Qf4#
- 1...Rxe5+
- 2.Qxe5#
- 1...Sxc5+
- 2.Bxc5#
- 1...Rh4
- 2.Sef5#
- 2.Shf5#
- 1...Rf5
- 2.Sexf5#
- 2.Shxf5#
- 1...Sc3
- 2.Sc2#
- 1...Rxh6+!
- threat
- 1.Bb4?
- threat
- 2.Sc2#
- 1...Rxe5+
- 2.Qxe5#
- 1...Sxc5+
- 2.Bxc5#
- 1...Bxe3
- 2.Qxe3#
- 1...axb4!
- threat
- 1.Rc2?
- 1...Rxe5+
- 2.Qxe5#
- 1...Sxc5+
- 2.Bxc5#
- 1...Bxe3
- 2.Qxe3#
- 1...Rh1
- 2.Sf5#
- 1...Rh2
- 2.Sf5#
- 1...Rh3
- 2.Sf5#
- 1...Rh4
- 2.Sf5#
- 1...Rf5
- 2.Sxf5#
- 1...Rg5
- 2.Qf4#
- 1...Bf4
- 2.Qxf4#
- 1...Bg5
- 2.Sf5#
- 1...Bg7
- 2.Qf4#
- 1...Bf8
- 2.Qf4#
- 1...Sb2
- 2.Bxb2#
- 1...Sb6
- 2.Bb2#
- 1...b4
- 2.Rc4#
- 1...Sc3!
- 1...Rxe5+
- 1.Qf2?
- threat
- 2.Sf5#
- 1...Sxc5+
- 2.Bxc5#
- 1...Bxe3
- 2.Qxe3#
- 1...Rf5
- 2.Sxf5#
- 1...Rxe5+!
- threat
- 1.Qh2?
- 1...Rxe5+
- 2.Qxe5#
- 1...Sxc5+
- 2.Bxc5#
- 1...Rxh2
- 2.Sf5#
- 1...Rh3
- 2.Sf5#
- 1...Rh4
- 2.Sf5#
- 1...Rf5
- 2.Sxf5#
- 1...Rg5
- 2.Qf4#
- 1...Bf4
- 2.Qxf4#
- 1...Bg5
- 2.Sf5#
- 1...Bg7
- 2.Qf4#
- 1...Bf8
- 2.Qf4#
- 1...Sb2
- 2.Bxb2#
- 1...Sc3
- 2.Sc2#
- 1...Sb6
- 2.Bb2#
- 1...b4
- 2.Rc4#
- 1...Bxe3!
- 1...Rxe5+
- 1.Qg1?
- threat
- 2.Sf5#
- 1...Sxc5+
- 2.Bxc5#
- 1...Bxe3
- 2.Qxe3#
- 1...Rf5
- 2.Sxf5#
- 1...Rxe5+!
- threat
- 1.Qg2?
- threat
- 2.Qe4#
- 1...Sxc5+
- 2.Bxc5#
- 1...Sc3
- 2.Sc2#
- 1...Rxe5+!
- threat
- 1.Qf3?
- threat
- 2.Qe4#
- 1...Sxc5+
- 2.Bxc5#
- 1...Sc3
- 2.Sc2#
- 1...Rxe5+!
- threat
- 1.Kd6?
- Keys
- 1.Sh2!
- 1...Rxe5+
- 2.Qxe5#
- 1...Sxc5+
- 2.Bxc5#
- 1...Rxh2
- 2.Sf5#
- 1...Bxe3
- 2.Sf3#
- 1...Rh3
- 2.Sf5#
- 1...Rh4
- 2.Sf5#
- 1...Rf5
- 2.Sxf5#
- 1...Rg5
- 2.Qf4#
- 1...Bf4
- 2.Qxf4#
- 1...Bg5
- 2.Sf5#
- 1...Bg7
- 2.Qf4#
- 1...Bf8
- 2.Qf4#
- 1...Sb2
- 2.Bxb2#
- 1...Sc3
- 2.Sc2#
- 1...Sb6
- 2.Bb2#
- 1...b4
- 2.Rc4#
- 1...Rxe5+
- 1.Sh2!
Anticipated by 2859(1895)
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 0
- REMOVED MATES = 1
- Sets
- R(e);N_GUARD::S(E)
- R(e);CHECK,OGATE,XP(I)::QAB1(F),XR(e)
- R(e);N_GUARD::S(E),XR(e)
- R(e);S_CUTB(g)::QAR2(F)
- B(g);OGATE,XS(E)::QAB1(F),XB(g)
- B(g);N_GUARD::QAR2(F),XB(g)
- B(g);S_CUTR(e)::S(E)
- B(g);N_GUARD::QAR2(F)
- S(a);N_GUARD::B(C),XS(a)
- S(a);SBLOCK::S(E)
- S(a);CHECK,OGATE,XP(H)::B(C),XS(a)
- S(a);N_GUARD::B(C)
- P(d);N_GUARD::R1(A)
- Tries
- Try
- K(J);P-FLIGHT
- Vars
- R(e);OGATE,XP(I)::QAB1(F),XR(e)
- B(g);OGATE,XS(E)::QAB1(F),XB(g)
- R(e);N_GUARD::S(E)
- R(e);N_GUARD::S(E),XR(e)
- R(e);S_CUTB(g)::QAR2(F)
- B(g);N_GUARD,P_PINP(I)::QAR2(F),XB(g)
- B(g);S_CUTR(e)::S(E)
- B(g);N_GUARD::QAR2(F)
- S(a);N_GUARD::B(C),XS(a)
- S(a);SBLOCK::S(E)
- S(a);N_GUARD::B(C)
- P(d);N_GUARD::R1(A)
- Refutation
- B(g);CHECK
- Try
- S(G);
- Vars
- R(e);CHECK,OGATE,XP(I)::QAB1(F),XR(e)
- S(a);CHECK,OGATE,XP(H)::B(C),XS(a)
- R(e);N_GUARD::S(E)
- R(e);N_GUARD::S(E),XR(e)
- R(e);S_CUTB(g)::QAR2(F)
- B(g);N_GUARD::QAR2(F),XB(g)
- B(g);S_CUTR(e)::S(E)
- B(g);N_GUARD::QAR2(F)
- S(a);N_GUARD::B(C),XS(a)
- S(a);SBLOCK::S(E)
- S(a);N_GUARD::B(C)
- P(d);N_GUARD::R1(A)
- Refutation
- B(g);XS(E)
- Try
- S(G);
- Vars
- R(e);CHECK,OGATE,XP(I)::QAB1(F),XR(e)
- S(a);CHECK,OGATE,XP(H)::B(C),XS(a)
- R(e);N_GUARD::S(E)
- R(e);N_GUARD::S(E),XR(e)
- R(e);S_CUTB(g)::QAR2(F)
- B(g);N_GUARD::QAR2(F),XB(g)
- B(g);S_CUTR(e)::S(E)
- B(g);N_GUARD::QAR2(F)
- S(a);N_GUARD::B(C),XS(a)
- S(a);SBLOCK::S(E)
- S(a);N_GUARD::B(C)
- P(d);N_GUARD::R1(A)
- Refutation
- B(g);XS(E)
- Try
- S(G);XB(g)
- Threat
- QAR2(F)
- Vars
- R(e);CHECK,OGATE,XP(I)::QAB1(F),XR(e)
- S(a);CHECK,OGATE,XP(H)::B(C),XS(a)
- S(a);SBLOCK::S(E)
- Refutation
- R(e);CHECK,XS(G)
- Try
- B(C);
- Threat
- S(E)
- Vars
- R(e);CHECK,OGATE,XP(I)::QAB1(F),XR(e)
- S(a);CHECK,OGATE,XP(H)::B(C),XS(a)
- B(g);OGATE,XS(E)::QAB1(F),XB(g)
- Refutation
- P(c);XB(C)
- Try
- R(A);
- Vars
- R(e);CHECK,OGATE,XP(I)::QAB1(F),XR(e)
- S(a);CHECK,OGATE,XP(H)::B(C),XS(a)
- B(g);OGATE,XS(E)::QAB1(F),XB(g)
- R(e);N_GUARD::S(E)
- R(e);N_GUARD::S(E),XR(e)
- R(e);S_CUTB(g)::QAR2(F)
- B(g);N_GUARD::QAR2(F),XB(g)
- B(g);S_CUTR(e)::S(E)
- B(g);N_GUARD::QAR2(F)
- S(a);N_GUARD::B(C),XS(a)
- S(a);N_GUARD::B(C)
- P(d);N_GUARD::R1(A)
- Refutation
- S(a);
- Try
- Q(F);
- Threat
- QAB(F)+S(E),DCHECK
- Vars
- S(a);CHECK,OGATE,XP(H)::B(C),XS(a)
- B(g);OGATE,P_SPINB(g),XS(E)::QAB1(F),XB(g)
- R(e);::QAB(F)+S(E),DCHECK,XR(e)
- Refutation
- R(e);CHECK,XP(I)
- Try
- Q(F);
- Vars
- R(e);CHECK,OGATE,XP(I)::QAB1(F),XR(e)
- S(a);CHECK,OGATE,XP(H)::B(C),XS(a)
- R(e);N_GUARD,XQ(F)::S(E)
- R(e);N_GUARD::S(E)
- R(e);N_GUARD::S(E),XR(e)
- R(e);S_CUTB(g)::QAR2(F)
- B(g);N_GUARD::QAR2(F),XB(g)
- B(g);S_CUTR(e)::S(E)
- B(g);N_GUARD::QAR2(F)
- S(a);N_GUARD::B(C),XS(a)
- S(a);SBLOCK::S(E)
- S(a);N_GUARD::B(C)
- P(d);N_GUARD::R1(A)
- Refutation
- B(g);XS(E)
- Try
- Q(F);
- Threat
- QAB(F)+S(E),DCHECK
- Vars
- S(a);CHECK,OGATE,XP(H)::B(C),XS(a)
- B(g);OGATE,P_SPINB(g),XS(E)::QAB1(F),XB(g)
- R(e);::QAB(F)+S(E),DCHECK,XR(e)
- Refutation
- R(e);CHECK,XP(I)
- Try
- Q(F);
- Threat
- QAR1(F)
- Vars
- S(a);CHECK,OGATE,XP(H)::B(C),XS(a)
- S(a);SBLOCK::S(E)
- Refutation
- R(e);CHECK,XP(I)
- Try
- Q(F);
- Threat
- QAR1(F)
- Vars
- S(a);CHECK,OGATE,XP(H)::B(C),XS(a)
- S(a);SBLOCK::S(E)
- Refutation
- R(e);CHECK,XP(I)
- Try
- Actual
- S(G);
- Vars
- R(e);CHECK,OGATE,XP(I)::QAB1(F),XR(e)
- S(a);CHECK,OGATE,XP(H)::B(C),XS(a)
- R(e);N_GUARD,XS(G)::S(E)
- B(g);SBLOCK,XS(E)::S(G)
- R(e);N_GUARD::S(E)
- R(e);N_GUARD::S(E),XR(e)
- R(e);S_CUTB(g)::QAR2(F)
- B(g);N_GUARD::QAR2(F),XB(g)
- B(g);S_CUTR(e)::S(E)
- B(g);N_GUARD::QAR2(F)
- S(a);N_GUARD::B(C),XS(a)
- S(a);SBLOCK::S(E)
- S(a);N_GUARD::B(C)
- P(d);N_GUARD::R1(A)
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).