MESON Chess Problem Database
Problem Display
PID: 160490 (1Br1n1q1/2pP3N/4PP2/1BRNp1p1/3pk1P1/2P3Qp/3b4/2n4K w - - 0 1)
Onkoud, Abdelaziz
1st Prize, ASIGC, 2008-2009
#2
12 + 11
| 4901 | Best Problems | 2011 |
SOLUTION
- SOUND
- Sets
- 1...Sa2
- 2.Bd3#
- 2.Qd3#
- 1...Se2
- 2.Bd3#
- 2.Qd3#
- 1...Sb3
- 2.Bd3#
- 2.Qd3#
- 1...Sd3
- 2.Bxd3#
- 2.Qxd3#
- 1...Sxf6
- 2.Sdxf6#
- 2.Shxf6#
- 1...h2
- 2.Qg2#
- 1...Sa2
- Tries
- 1.Se3?
- threat
- 2.Rxe5#
- 1...Qxe6
- 2.Sxg5#
- 1...Sd3
- 2.Bc6#
- 1...dxc3!
- threat
- 1.Sb4?
- threat
- 2.Bc6#
- 2.Rxe5#
- 1...Sxf6
- 2.Sxf6#
- 2.Rxe5#
- 1...dxc3
- 2.Rc4#
- 1...Bf4
- 2.Bc6#
- 1...Sd3
- 2.Bxd3#
- 2.Bc6#
- 1...c6
- 2.Rxe5#
- 1...Qxe6!
- threat
- 1.Sb6?
- threat
- 2.Bc6#
- 2.Rxe5#
- 1...Sxf6
- 2.Sxf6#
- 2.Rxe5#
- 1...dxc3
- 2.Rc4#
- 1...cxb6
- 2.Rxe5#
- 1...Be3
- 2.Rxe5#
- 1...Bf4
- 2.Bc6#
- 1...Sd3
- 2.Bxd3#
- 2.Bc6#
- 1...c6
- 2.Rxe5#
- 1...Qxe6!
- threat
- 1.Sxc7?
- threat
- 2.Bc6#
- 2.Rxe5#
- 1...Rxc7
- 2.Rxe5#
- 1...Sxf6
- 2.Sxf6#
- 2.Rxe5#
- 1...Sxc7
- 2.Rxe5#
- 1...dxc3
- 2.Rc4#
- 1...Be3
- 2.Rxe5#
- 1...Bf4
- 2.Bc6#
- 1...Sd3
- 2.Bxd3#
- 2.Bc6#
- 1...Qxe6!
- threat
- 1.Se7?
- threat
- 2.Bc6#
- 2.Rxe5#
- 1...Sxf6
- 2.Sxf6#
- 2.Rxe5#
- 1...dxc3
- 2.Rc4#
- 1...Be3
- 2.Rxe5#
- 1...Bf4
- 2.Bc6#
- 1...Sd3
- 2.Bxd3#
- 2.Bc6#
- 1...c6
- 2.Rxe5#
- 1...Qxe6!
- threat
- 1.Bc6?
- threat
- 2.Sb4#
- 2.Sf4#
- 2.Sb6#
- 2.Sxc7#
- 2.Se7#
- 1...Sxf6
- 2.Sdxf6#
- 2.Shxf6#
- 1...dxc3
- 2.Rc4#
- 1...Be3
- 2.Sb4#
- 2.Sf4#
- 1...Bf4
- 2.Sb4#
- 2.Sxf4#
- 2.Sb6#
- 2.Sxc7#
- 2.Se7#
- 1...Qxe6!
- threat
- 1.Se3?
- Keys
- 1.Sf4!
- threat
- 2.Bc6#
- 1...Qxe6
- 2.Sxg5#
- 1...Sxf6
- 2.Sxf6#
- 1...dxc3
- 2.Rc4#
- 1...c6
- 2.Rxe5#
- threat
- 1.Sf4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 1
- Sets
- P(c);N_GUARD::QAB(C)
- Tries
- Try
- S(G);
- Threat
- R1(F),XP(f)
- Vars
- Q(k);N_GUARD,XP(H)::S(K),XP(g)
- S(a);SBLOCK::B(E)
- Refutation
- P(d);XP(B)
- Try
- S(G);
- Threat
- DUALS(2)
- Vars
- P(d);OGATEB,XP(B)::R(F)
- B(b);::B(E)
- P(h);::R1(F),XP(f)
- Refutation
- Q(k);XP(H)
- Try
- S(G);
- Threat
- DUALS(2)
- Vars
- P(d);OGATEB,XP(B)::R(F)
- P(h);XS(G)::R1(F),XP(f)
- B(b);::R1(F),XP(f)
- B(b);::B(E)
- P(h);::R1(F),XP(f)
- Refutation
- Q(k);XP(H)
- Try
- S(G);XP(h)
- Threat
- DUALS(2)
- Vars
- R(i);XS(G)::R1(F),XP(f)
- S(j);XS(G)::R1(F),XP(f)
- P(d);OGATEB,XP(B)::R(F)
- B(b);::R1(F),XP(f)
- B(b);::B(E)
- Refutation
- Q(k);XP(H)
- Try
- S(G);
- Threat
- DUALS(2)
- Vars
- P(d);OGATEB,XP(B)::R(F)
- B(b);::R1(F),XP(f)
- B(b);::B(E)
- P(h);::R1(F),XP(f)
- Refutation
- Q(k);XP(H)
- Try
- B(E);
- Threat
- DUALS(5)
- Vars
- P(d);OGATEB,XP(B)::R(F)
- Refutation
- Q(k);XP(H)
- Try
- Actual
- S(G);
- Threat
- B(E)
- Vars
- Q(k);N_GUARD,XP(H)::S(K),XP(g)
- S(j);XP(I)::S(K),XS(j)
- P(d);OGATEB,XP(B)::R(F)
- P(h);::R1(F),XP(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).