MESON Chess Problem Database
Problem Display
PID: 155625 (1BN3B1/8/2n5/1R1Npk2/2n5/2K2P2/8/6R1 w - - 0 1)
Lipton, Michael
Israel Ring Ty., 1963
#2
8 + 4
| 133 | The Problemist Supplement | 2015 |
| 5454 | Near Snap | 2016 |
SOLUTION
- SOUND
- Sets
- 1...Sb2
- 2.Sd6#
- 1...Sd2
- 2.Sd6#
- 1...Sa3
- 2.Sd6#
- 1...Se3
- 2.Sd6#
- 1...S4a5
- 2.Sd6#
- 1...Sb6
- 2.Sd6#
- 1...Sd6
- 2.Sxd6#
- 1...Sb4
- 2.Sce7#
- 1...Sd4
- 2.Sce7#
- 1...S6a5
- 2.Sce7#
- 1...Sa7
- 2.Sce7#
- 1...Se7
- 2.Scxe7#
- 1...Sxb8
- 2.Sce7#
- 1...Sd8
- 2.Sce7#
- 1...Sb2
- Tries
- 1.Ba7?
- 1...Sxa7
- 2.Sce7#
- 1...Sb2
- 2.Sd6#
- 1...Sd2
- 2.Sd6#
- 1...Sa3
- 2.Sd6#
- 1...Se3
- 2.Sd6#
- 1...S4a5
- 2.Sd6#
- 1...Sb6
- 2.Sd6#
- 1...Sd6
- 2.Sxd6#
- 1...Sb4
- 2.Sce7#
- 1...Sd4
- 2.Sce7#
- 1...S6a5
- 2.Sce7#
- 1...Se7
- 2.Scxe7#
- 1...Sb8
- 2.Sce7#
- 1...Sd8
- 2.Sce7#
- 1...e4!
- 1...Sxa7
- 1.Bc7?
- 1...Sb2
- 2.Sd6#
- 1...Sd2
- 2.Sd6#
- 1...Sa3
- 2.Sd6#
- 1...Se3
- 2.Sd6#
- 1...S4a5
- 2.Sd6#
- 1...Sb6
- 2.Sd6#
- 1...Sd6
- 2.Sxd6#
- 1...Sb4
- 2.Sce7#
- 1...Sd4
- 2.Sce7#
- 1...S6a5
- 2.Sce7#
- 1...Sa7
- 2.Sce7#
- 1...Se7
- 2.Scxe7#
- 1...Sb8
- 2.Sce7#
- 1...Sd8
- 2.Sce7#
- 1...e4!
- 1...Sb2
- 1.Bf7?
- 1...Sxb8
- 2.Sce7#
- 1...Sb2
- 2.Sd6#
- 1...Sd2
- 2.Sd6#
- 1...Sa3
- 2.Sd6#
- 1...Se3
- 2.Sd6#
- 1...S4a5
- 2.Sd6#
- 1...Sb6
- 2.Sd6#
- 1...Sd6
- 2.Sxd6#
- 1...Sb4
- 2.Sce7#
- 1...Sd4
- 2.Sce7#
- 1...S6a5
- 2.Sce7#
- 1...Sa7
- 2.Sce7#
- 1...Se7
- 2.Scxe7#
- 1...Sd8
- 2.Sce7#
- 1...e4!
- 1...Sxb8
- 1.Rg2?
- 1...Sxb8
- 2.Sce7#
- 1...Sb2
- 2.Sd6#
- 1...Sd2
- 2.Sd6#
- 1...Sa3
- 2.Sd6#
- 1...Se3
- 2.Sd6#
- 1...S4a5
- 2.Sd6#
- 1...Sb6
- 2.Sd6#
- 1...Sd6
- 2.Sxd6#
- 1...Sb4
- 2.Sce7#
- 1...Sd4
- 2.Sce7#
- 1...S6a5
- 2.Sce7#
- 1...Sa7
- 2.Sce7#
- 1...Se7
- 2.Scxe7#
- 1...Sd8
- 2.Sce7#
- 1...e4!
- 1...Sxb8
- 1.Rg3?
- 1...Sxb8
- 2.Sce7#
- 1...Sb2
- 2.Sd6#
- 1...Sd2
- 2.Sd6#
- 1...Sa3
- 2.Sd6#
- 1...Se3
- 2.Sd6#
- 1...S4a5
- 2.Sd6#
- 1...Sb6
- 2.Sd6#
- 1...Sd6
- 2.Sxd6#
- 1...Sb4
- 2.Sce7#
- 1...Sd4
- 2.Sce7#
- 1...S6a5
- 2.Sce7#
- 1...Sa7
- 2.Sce7#
- 1...Se7
- 2.Scxe7#
- 1...Sd8
- 2.Sce7#
- 1...e4!
- 1...Sxb8
- 1.Rg4?
- 1...Sxb8
- 2.Sce7#
- 1...Sb2
- 2.Sd6#
- 1...Sd2
- 2.Sd6#
- 1...Sa3
- 2.Sd6#
- 1...Se3
- 2.Sd6#
- 1...S4a5
- 2.Sd6#
- 1...Sb6
- 2.Sd6#
- 1...Sd6
- 2.Sxd6#
- 1...Sb4
- 2.Sce7#
- 1...Sd4
- 2.Sce7#
- 1...S6a5
- 2.Sce7#
- 1...Sa7
- 2.Sce7#
- 1...Se7
- 2.Scxe7#
- 1...Sd8
- 2.Sce7#
- 1...e4!
- 1...Sxb8
- 1.Rg7?
- 1...Sxb8
- 2.Sce7#
- 1...Sb2
- 2.Sd6#
- 1...Sd2
- 2.Sd6#
- 1...Sa3
- 2.Sd6#
- 1...Se3
- 2.Sd6#
- 1...S4a5
- 2.Sd6#
- 1...Sb6
- 2.Sd6#
- 1...Sd6
- 2.Sxd6#
- 1...Sb4
- 2.Sce7#
- 1...Sd4
- 2.Sce7#
- 1...S6a5
- 2.Sce7#
- 1...Sa7
- 2.Sce7#
- 1...Se7
- 2.Scxe7#
- 1...Sd8
- 2.Sce7#
- 1...e4!
- 1...Sxb8
- 1.Rbb1?
- 1...Sxb8
- 2.Sce7#
- 1...Sb2
- 2.Sd6#
- 1...Sd2
- 2.Sd6#
- 1...Sa3
- 2.Sd6#
- 1...Se3
- 2.Sd6#
- 1...S4a5
- 2.Sd6#
- 1...Sb6
- 2.Sd6#
- 1...Sd6
- 2.Sxd6#
- 1...Sb4
- 2.Sce7#
- 1...Sd4
- 2.Sce7#
- 1...S6a5
- 2.Sce7#
- 1...Sa7
- 2.Sce7#
- 1...Se7
- 2.Scxe7#
- 1...Sd8
- 2.Sce7#
- 1...e4!
- 1...Sxb8
- 1.Rb2?
- 1...Sxb2
- 2.Sd6#
- 1...Sxb8
- 2.Sce7#
- 1...Sd2
- 2.Sd6#
- 1...Sa3
- 2.Sd6#
- 1...Se3
- 2.Sd6#
- 1...S4a5
- 2.Sd6#
- 1...Sb6
- 2.Sd6#
- 1...Sd6
- 2.Sxd6#
- 1...Sb4
- 2.Sce7#
- 1...Sd4
- 2.Sce7#
- 1...S6a5
- 2.Sce7#
- 1...Sa7
- 2.Sce7#
- 1...Se7
- 2.Scxe7#
- 1...Sd8
- 2.Sce7#
- 1...e4!
- 1...Sxb2
- 1.Rb3?
- 1...Sxb8
- 2.Sce7#
- 1...Sb2
- 2.Sd6#
- 1...Sd2
- 2.Sd6#
- 1...Sa3
- 2.Sd6#
- 1...Se3
- 2.Sd6#
- 1...S4a5
- 2.Sd6#
- 1...Sb6
- 2.Sd6#
- 1...Sd6
- 2.Sxd6#
- 1...Sb4
- 2.Sce7#
- 1...Sd4
- 2.Sce7#
- 1...S6a5
- 2.Sce7#
- 1...Sa7
- 2.Sce7#
- 1...Se7
- 2.Scxe7#
- 1...Sd8
- 2.Sce7#
- 1...e4!
- 1...Sxb8
- 1.Rb4?
- 1...Sxb4
- 2.Sce7#
- 1...Sxb8
- 2.Sce7#
- 1...Sb2
- 2.Sd6#
- 1...Sd2
- 2.Sd6#
- 1...Sa3
- 2.Sd6#
- 1...Se3
- 2.Sd6#
- 1...S4a5
- 2.Sd6#
- 1...Sb6
- 2.Sd6#
- 1...Sd6
- 2.Sxd6#
- 1...Sd4
- 2.Sce7#
- 1...S6a5
- 2.Sce7#
- 1...Sa7
- 2.Sce7#
- 1...Se7
- 2.Scxe7#
- 1...Sd8
- 2.Sce7#
- 1...e4!
- 1...Sxb4
- 1.Ra5?
- 1...S4xa5
- 2.Sd6#
- 1...S6xa5
- 2.Sce7#
- 1...Sxb8
- 2.Sce7#
- 1...Sb2
- 2.Sd6#
- 1...Sd2
- 2.Sd6#
- 1...Sa3
- 2.Sd6#
- 1...Se3
- 2.Sd6#
- 1...Sb6
- 2.Sd6#
- 1...Sd6
- 2.Sxd6#
- 1...Sb4
- 2.Sce7#
- 1...Sd4
- 2.Sce7#
- 1...Sa7
- 2.Sce7#
- 1...Se7
- 2.Scxe7#
- 1...Sd8
- 2.Sce7#
- 1...e4!
- 1...S4xa5
- 1.Rc5?
- 1...Sxb8
- 2.Sce7#
- 1...Sb2
- 2.Sd6#
- 1...Sd2
- 2.Sd6#
- 1...Sa3
- 2.Sd6#
- 1...Se3
- 2.Sd6#
- 1...S4a5
- 2.Sd6#
- 1...Sb6
- 2.Sd6#
- 1...Sd6
- 2.Sxd6#
- 1...Sb4
- 2.Sce7#
- 1...Sd4
- 2.Sce7#
- 1...S6a5
- 2.Sce7#
- 1...Sa7
- 2.Sce7#
- 1...Se7
- 2.Scxe7#
- 1...Sd8
- 2.Sce7#
- 1...e4!
- 1...Sxb8
- 1.Rb6?
- 1...Sxb6
- 2.Sd6#
- 1...Sxb8
- 2.Sce7#
- 2.Be6#
- 2.Bh7#
- 2.Rf6#
- 1...Sb2
- 2.Sd6#
- 1...Sd2
- 2.Sd6#
- 1...Sa3
- 2.Sd6#
- 1...Se3
- 2.Sd6#
- 1...S4a5
- 2.Sd6#
- 1...Sd6
- 2.Sxd6#
- 1...Sb4
- 2.Sce7#
- 2.Be6#
- 2.Bh7#
- 2.Rf6#
- 1...Sd4
- 2.Sce7#
- 2.Bh7#
- 2.Rf6#
- 1...S6a5
- 2.Sce7#
- 2.Be6#
- 2.Bh7#
- 2.Rf6#
- 1...Sa7
- 2.Sce7#
- 2.Be6#
- 2.Bh7#
- 2.Rf6#
- 1...Se7
- 2.Scxe7#
- 2.Be6#
- 2.Rf6#
- 1...Sd8
- 2.Sce7#
- 2.Bh7#
- 2.Rf6#
- 1...e4!
- 1...Sxb6
- 1.Rb7?
- 1...Sxb8
- 2.Sce7#
- 1...Sb2
- 2.Sd6#
- 1...Sd2
- 2.Sd6#
- 1...Sa3
- 2.Sd6#
- 1...Se3
- 2.Sd6#
- 1...S4a5
- 2.Sd6#
- 1...Sb6
- 2.Sd6#
- 1...Sd6
- 2.Sxd6#
- 1...Sb4
- 2.Sce7#
- 1...Sd4
- 2.Sce7#
- 1...S6a5
- 2.Sce7#
- 1...Sa7
- 2.Sce7#
- 1...Se7
- 2.Scxe7#
- 1...Sd8
- 2.Sce7#
- 1...e4!
- 1...Sxb8
- 1.Ba7?
- Keys
- 1.Bxe5!
- 1...Kxe5
- 2.Rg5#
- 1...S4xe5
- 2.Sd6#
- 1...S6xe5
- 2.Sce7#
- 1...Sb2
- 2.Se3#
- 1...Sd2
- 2.Se3#
- 1...Sa3
- 2.Se3#
- 1...Se3
- 2.Sxe3#
- 1...S4a5
- 2.Se3#
- 1...Sb6
- 2.Se3#
- 1...Sd6
- 2.Se3#
- 1...Sb4
- 2.Sde7#
- 1...Sd4
- 2.Sde7#
- 1...S6a5
- 2.Sde7#
- 1...Sa7
- 2.Sde7#
- 1...Se7
- 2.Sdxe7#
- 1...Sb8
- 2.Sde7#
- 1...Sd8
- 2.Sde7#
- 1...Kxe5
- 1.Bxe5!
This anticipates 138662(1966), 153998(1966-1967), 157948(1973)
This is a version
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 14
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- S(a);N_GUARD::S(G)
- S(a);N_GUARD::S(G),XS(a)
- S(d);N_GUARD::S(G)
- S(d);N_GUARD::S(G),XS(d)
- S(d);N_GUARD,XB(F)::S(G)
- Tries
- Try
- B(F);
- Vars
- S(d);N_GUARD,XB(F)::S(G)
- S(a);N_GUARD::S(G)
- S(a);N_GUARD::S(G),XS(a)
- S(d);N_GUARD::S(G)
- S(d);N_GUARD::S(G),XS(d)
- Refutation
- P(b);
- Try
- B(F);
- Vars
- S(a);N_GUARD::S(G)
- S(a);N_GUARD::S(G),XS(a)
- S(d);N_GUARD::S(G)
- S(d);N_GUARD::S(G),XS(d)
- Refutation
- P(b);
- Try
- B(H);
- Vars
- S(d);N_GUARD,XB(F)::S(G)
- S(a);N_GUARD::S(G)
- S(a);N_GUARD::S(G),XS(a)
- S(d);N_GUARD::S(G)
- S(d);N_GUARD::S(G),XS(d)
- Refutation
- P(b);
- Try
- R(A);
- Vars
- S(d);N_GUARD,XB(F)::S(G)
- S(a);N_GUARD::S(G)
- S(a);N_GUARD::S(G),XS(a)
- S(d);N_GUARD::S(G)
- S(d);N_GUARD::S(G),XS(d)
- Refutation
- P(b);
- Try
- R(A);
- Vars
- S(d);N_GUARD,XB(F)::S(G)
- S(a);N_GUARD::S(G)
- S(a);N_GUARD::S(G),XS(a)
- S(d);N_GUARD::S(G)
- S(d);N_GUARD::S(G),XS(d)
- Refutation
- P(b);
- Try
- R(A);
- Vars
- S(d);N_GUARD,XB(F)::S(G)
- S(a);N_GUARD::S(G)
- S(a);N_GUARD::S(G),XS(a)
- S(d);N_GUARD::S(G)
- S(d);N_GUARD::S(G),XS(d)
- Refutation
- P(b);
- Try
- R(A);
- Vars
- S(d);N_GUARD,XB(F)::S(G)
- S(a);N_GUARD::S(G)
- S(a);N_GUARD::S(G),XS(a)
- S(d);N_GUARD::S(G)
- S(d);N_GUARD::S(G),XS(d)
- Refutation
- P(b);
- Try
- R(D);
- Vars
- S(d);N_GUARD,XB(F)::S(G)
- S(a);N_GUARD::S(G)
- S(a);N_GUARD::S(G),XS(a)
- S(d);N_GUARD::S(G)
- S(d);N_GUARD::S(G),XS(d)
- Refutation
- P(b);
- Try
- R(D);
- Vars
- S(a);N_GUARD,XR(D)::S(G)
- S(d);N_GUARD,XB(F)::S(G)
- S(a);N_GUARD::S(G)
- S(a);N_GUARD::S(G),XS(a)
- S(d);N_GUARD::S(G)
- S(d);N_GUARD::S(G),XS(d)
- Refutation
- P(b);
- Try
- R(D);
- Vars
- S(d);N_GUARD,XB(F)::S(G)
- S(a);N_GUARD::S(G)
- S(a);N_GUARD::S(G),XS(a)
- S(d);N_GUARD::S(G)
- S(d);N_GUARD::S(G),XS(d)
- Refutation
- P(b);
- Try
- R(D);
- Vars
- S(d);N_GUARD,XR(D)::S(G)
- S(d);N_GUARD,XB(F)::S(G)
- S(a);N_GUARD::S(G)
- S(a);N_GUARD::S(G),XS(a)
- S(d);N_GUARD::S(G)
- S(d);N_GUARD::S(G),XS(d)
- Refutation
- P(b);
- Try
- R(D);
- Vars
- S(a);N_GUARD,XR(D)::S(G)
- S(d);N_GUARD,XR(D)::S(G)
- S(d);N_GUARD,XB(F)::S(G)
- S(a);N_GUARD::S(G)
- S(a);N_GUARD::S(G),XS(a)
- S(d);N_GUARD::S(G)
- S(d);N_GUARD::S(G),XS(d)
- Refutation
- P(b);
- Try
- R(D);
- Vars
- S(d);N_GUARD,XB(F)::S(G)
- S(a);N_GUARD::S(G)
- S(a);N_GUARD::S(G),XS(a)
- S(d);N_GUARD::S(G)
- S(d);N_GUARD::S(G),XS(d)
- Refutation
- P(b);
- Try
- R(D);
- Vars
- S(a);N_GUARD,XR(D)::S(G)
- S(a);N_GUARD::S(G)
- S(a);N_GUARD::S(G),XS(a)
- Refutation
- P(b);
- Try
- R(D);
- Vars
- S(d);N_GUARD,XB(F)::S(G)
- S(a);N_GUARD::S(G)
- S(a);N_GUARD::S(G),XS(a)
- S(d);N_GUARD::S(G)
- S(d);N_GUARD::S(G),XS(d)
- Refutation
- P(b);
- Try
- Actual
- B(F);XP(b)
- Vars
- K(c);P-FLIGHT,XB(F)::R(A)
- S(a);N_GUARD,SBLOCK,XB(F)::S(G)
- S(d);N_GUARD,SBLOCK,XB(F)::S(G)
- S(a);N_GUARD::S(E)
- S(a);N_GUARD::S(E),XS(a)
- S(d);N_GUARD::S(E)
- S(d);N_GUARD::S(E),XS(d)
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).