MESON Chess Problem Database
Problem Display
PID: 28648 (4R3/8/8/7n/2pp4/2Pk1BpN/1P3P2/2K2b2 w - - 0 1)
Onkoud, Abdelaziz
The Problemist, 2001
#2
7 + 6
SOLUTION
- SOUND
- Sets
- 1...Be2
- 2.Bxe2#
- 2.Be4#
- 1...Bg2
- 2.Be2#
- 1...Bxh3
- 2.Be2#
- 1...Sf4
- 2.Sxf4#
- 1...Sf6
- 2.Sf4#
- 1...Sg7
- 2.Sf4#
- 1...gxf2
- 2.Sxf2#
- 1...dxc3
- 2.Rd8#
- 1...Be2
- Tries
- 1.Bg4?
- threat
- 2.Bf5#
- 1...Bxh3
- 2.Be2#
- 1...Bg2
- 2.Be2#
- 1...Sf6
- 2.Sf4#
- 1...Sg7
- 2.Sf4#
- 1...dxc3!
- threat
- 1.Bxh5?
- threat
- 2.Sf4#
- 2.Bg6#
- 1...Bxh3
- 2.Be2#
- 1...Bg2
- 2.Sf4#
- 2.Be2#
- 1...dxc3!
- threat
- 1.Re1?
- threat
- 2.Be4#
- 2.Rd1#
- 1...gxf2
- 2.Sxf2#
- 2.Be4#
- 1...dxc3
- 2.Rd1#
- 1...Bg2
- 2.Rd1#
- 1...Sf6
- 2.Sf4#
- 2.Rd1#
- 1...Be2!
- threat
- 1.Re4?
- threat
- 2.Rxd4#
- 1...gxf2
- 2.Sxf2#
- 1...dxc3!
- threat
- 1.Re5?
- 1...Bxh3
- 2.Be2#
- 1...gxf2
- 2.Sxf2#
- 1...dxc3
- 2.Rd5#
- 1...Be2
- 2.Bxe2#
- 2.Be4#
- 1...Bg2
- 2.Be2#
- 1...Sf4
- 2.Sxf4#
- 1...Sf6
- 2.Sf4#
- 1...Sg7
- 2.Sf4#
- 1...g2!
- 1...Bxh3
- 1.Re6?
- 1...Bxh3
- 2.Be2#
- 1...gxf2
- 2.Sxf2#
- 1...dxc3
- 2.Rd6#
- 1...Be2
- 2.Bxe2#
- 2.Be4#
- 1...Bg2
- 2.Be2#
- 1...Sf4
- 2.Sxf4#
- 1...Sf6
- 2.Sf4#
- 1...Sg7
- 2.Sf4#
- 1...g2!
- 1...Bxh3
- 1.Re7?
- 1...Bxh3
- 2.Be2#
- 1...gxf2
- 2.Sxf2#
- 1...dxc3
- 2.Rd7#
- 1...Be2
- 2.Bxe2#
- 2.Be4#
- 1...Bg2
- 2.Be2#
- 1...Sf4
- 2.Sxf4#
- 1...Sf6
- 2.Sf4#
- 1...Sg7
- 2.Sf4#
- 1...g2!
- 1...Bxh3
- 1.fxg3?
- threat
- 2.Sf2#
- 1...Bxh3
- 2.Be2#
- 1...dxc3!
- threat
- 1.Bg4?
- Keys
- 1.Kd1!
- threat
- 2.Be4#
- 1...Be2+
- 2.Bxe2#
- 1...gxf2
- 2.Sxf2#
- 1...dxc3
- 2.Rd8#
- 1...Bg2
- 2.Be2#
- 1...Sf6
- 2.Sf4#
- threat
- 1.Kd1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 3
- Sets
- B(a);N_GUARD::B(E)
- B(a);N_GUARD,XS(F)::B(E)
- S(f);N_GUARD::S(F),XS(f)
- S(f);N_GUARD::S(F)
- P(c);XP(C)::S(F),XP(c)
- P(e);OGATEB,XP(D)::R(G)
- Tries
- Try
- B(E);
- Threat
- B(E)
- Vars
- B(a);N_GUARD,XS(F)::B(E)
- B(a);N_GUARD::B(E)
- S(f);N_GUARD::S(F)
- Refutation
- P(e);XP(D)
- Try
- B(E);XS(f)
- Threat
- DUALS(2)
- Vars
- B(a);N_GUARD,XS(F)::B(E)
- Refutation
- P(e);XP(D)
- Try
- R(G);
- Threat
- DUALS(2)
- Vars
- P(e);XP(D)::R(G)
- B(a);::R(G)
- Refutation
- B(a);
- Try
- R(G);
- Threat
- R1(G),XP(e)
- Vars
- P(c);XP(C)::S(F),XP(c)
- Refutation
- P(e);XP(D)
- Try
- R(G);
- Vars
- B(a);N_GUARD,XS(F)::B(E)
- P(c);XP(C)::S(F),XP(c)
- P(e);OGATEB,XP(D)::R(G)
- B(a);N_GUARD::B(E)
- S(f);N_GUARD::S(F),XS(f)
- S(f);N_GUARD::S(F)
- Refutation
- P(c);
- Try
- R(G);
- Vars
- B(a);N_GUARD,XS(F)::B(E)
- P(c);XP(C)::S(F),XP(c)
- P(e);OGATEB,XP(D)::R(G)
- B(a);N_GUARD::B(E)
- S(f);N_GUARD::S(F),XS(f)
- S(f);N_GUARD::S(F)
- Refutation
- P(c);
- Try
- R(G);
- Vars
- B(a);N_GUARD,XS(F)::B(E)
- P(c);XP(C)::S(F),XP(c)
- P(e);OGATEB,XP(D)::R(G)
- B(a);N_GUARD::B(E)
- S(f);N_GUARD::S(F),XS(f)
- S(f);N_GUARD::S(F)
- Refutation
- P(c);
- Try
- P(C);XP(c)
- Threat
- S(F)
- Vars
- B(a);N_GUARD,XS(F)::B(E)
- Refutation
- P(e);XP(D)
- Try
- Actual
- K(A);P-FLIGHT
- Threat
- B(E)
- Vars
- B(a);CHECK,N_GUARD::B(E),XB(a)
- P(c);XP(C)::S(F),XP(c)
- P(e);OGATEB,XP(D)::R(G)
- B(a);N_GUARD::B(E)
- S(f);N_GUARD::S(F)
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).