MESON Chess Problem Database
Problem Display
PID: 951 (8/7K/n3N3/4p3/6P1/1P1k1Nb1/3P4/3Q3B w - - 0 1)
Lang, JCV
The Problemist Supplement, 1994
#2
8 + 4
| 5454 | Near Snap | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Ke4
- 2.Se1#
- 1...Be1
- 2.Sxe1#
- 2.Sxe5#
- 1...Bf2
- 2.Sxe5#
- 1...Bh2
- 2.Se1#
- 1...Bf4
- 2.Se1#
- 1...Bh4
- 2.Sxe5#
- 1...Sb4
- 2.Sc5#
- 1...Sc5
- 2.Sxc5#
- 1...Sc7
- 2.Sc5#
- 1...Sb8
- 2.Sc5#
- 1...Ke4
- Tries
- 1.Kg6?
- 1...Ke4
- 2.Se1#
- 1...Be1
- 2.Sxe1#
- 2.Sxe5#
- 1...Bf2
- 2.Sxe5#
- 1...Bh2
- 2.Se1#
- 1...Bf4
- 2.Se1#
- 1...Bh4
- 2.Sxe5#
- 1...Sb4
- 2.Sc5#
- 1...Sc5
- 2.Sxc5#
- 1...Sc7
- 2.Sc5#
- 1...Sb8
- 2.Sc5#
- 1...e4!
- 1...Ke4
- 1.Kg7?
- 1...Ke4
- 2.Se1#
- 1...Be1
- 2.Sxe1#
- 2.Sxe5#
- 1...Bf2
- 2.Sxe5#
- 1...Bh2
- 2.Se1#
- 1...Bf4
- 2.Se1#
- 1...Bh4
- 2.Sxe5#
- 1...Sb4
- 2.Sc5#
- 1...Sc5
- 2.Sxc5#
- 1...Sc7
- 2.Sc5#
- 1...Sb8
- 2.Sc5#
- 1...e4!
- 1...Ke4
- 1.Kg8?
- 1...Ke4
- 2.Se1#
- 1...Be1
- 2.Sxe1#
- 2.Sxe5#
- 1...Bf2
- 2.Sxe5#
- 1...Bh2
- 2.Se1#
- 1...Bf4
- 2.Se1#
- 1...Bh4
- 2.Sxe5#
- 1...Sb4
- 2.Sc5#
- 1...Sc5
- 2.Sxc5#
- 1...Sc7
- 2.Sc5#
- 1...Sb8
- 2.Sc5#
- 1...e4!
- 1...Ke4
- 1.Kh8?
- 1...Ke4
- 2.Se1#
- 1...Be1
- 2.Sxe1#
- 2.Sxe5#
- 1...Bf2
- 2.Sxe5#
- 1...Bh2
- 2.Se1#
- 1...Bf4
- 2.Se1#
- 1...Bh4
- 2.Sxe5#
- 1...Sb4
- 2.Sc5#
- 1...Sc5
- 2.Sxc5#
- 1...Sc7
- 2.Sc5#
- 1...Sb8
- 2.Sc5#
- 1...e4!
- 1...Ke4
- 1.Sfd4?
- threat
- 2.Qc2#
- 2.Qe2#
- 1...Sb4
- 2.Qe2#
- 1...exd4!
- threat
- 1.Sfg5?
- threat
- 2.Be4#
- 1...e4
- 2.Bxe4#
- 1...Sc5!
- threat
- 1.Qc1?
- threat
- 2.Qc4#
- 1...Ke4
- 2.Se1#
- 2.Qc4#
- 1...Ke2!
- threat
- 1.Qf1+?
- 1...Ke4
- 2.Se1#
- 2.Sg1#
- 2.Sh2#
- 2.Sfd4#
- 2.Sh4#
- 2.Sfg5#
- 2.Qc4#
- 1...Kc2!
- 1...Ke4
- 1.Kg6?
- Keys
- 1.Bg2!
- 1...Ke4
- 2.Se1#
- 1...e4
- 2.Bf1#
- 1...Be1
- 2.Sxe1#
- 2.Sxe5#
- 1...Bf2
- 2.Sxe5#
- 1...Bh2
- 2.Se1#
- 1...Bf4
- 2.Se1#
- 1...Bh4
- 2.Sxe5#
- 1...Sb4
- 2.Sc5#
- 1...Sc5
- 2.Sxc5#
- 1...Sc7
- 2.Sc5#
- 1...Sb8
- 2.Sc5#
- 1...Ke4
- 1.Bg2!
Anticipated by 132183(1956)
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- K(a);S_FLIGHT::B(B)+S(E)
- B(b);N_GUARD::S(E),XP(c)
- B(b);N_GUARD::S(E)
- S(d);N_GUARD::S(G)
- S(d);N_GUARD::S(G),XS(d)
- Tries
- Try
- K(H);S_FLIGHT
- Vars
- K(a);S_FLIGHT::B(B)+S(E)
- B(b);N_GUARD::S(E),XP(c)
- B(b);N_GUARD::S(E)
- S(d);N_GUARD::S(G)
- S(d);N_GUARD::S(G),XS(d)
- Refutation
- P(c);
- Try
- K(H);P-FLIGHT
- Vars
- K(a);S_FLIGHT::B(B)+S(E)
- B(b);N_GUARD::S(E),XP(c)
- B(b);N_GUARD::S(E)
- S(d);N_GUARD::S(G)
- S(d);N_GUARD::S(G),XS(d)
- Refutation
- P(c);
- Try
- K(H);S_FLIGHT
- Vars
- K(a);S_FLIGHT::B(B)+S(E)
- B(b);N_GUARD::S(E),XP(c)
- B(b);N_GUARD::S(E)
- S(d);N_GUARD::S(G)
- S(d);N_GUARD::S(G),XS(d)
- Refutation
- P(c);
- Try
- K(H);P-FLIGHT
- Vars
- K(a);S_FLIGHT::B(B)+S(E)
- B(b);N_GUARD::S(E),XP(c)
- B(b);N_GUARD::S(E)
- S(d);N_GUARD::S(G)
- S(d);N_GUARD::S(G),XS(d)
- Refutation
- P(c);
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- S(d);::QAB1(A)
- Refutation
- P(c);XS(E)
- Try
- S(E);
- Threat
- B(B)
- Vars
- P(c);::B(B),XP(c)
- Refutation
- S(d);
- Try
- Q(A);
- Threat
- QAB1(A)
- Refutation
- K(a);S_FLIGHT
- Try
- Q(A);CHECK
- Refutation
- K(a);S_FLIGHT
- Try
- Actual
- B(B);
- Vars
- K(a);S_FLIGHT::B(B)+S(E)
- P(c);SBLOCK::B(B)
- B(b);N_GUARD::S(E),XP(c)
- B(b);N_GUARD::S(E)
- S(d);N_GUARD::S(G)
- S(d);N_GUARD::S(G),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).