MESON Chess Problem Database
Problem Display
PID: 199335 (nB5K/2p5/2R3p1/1p2kpN1/3pPnb1/4N1P1/1P2P3/4Q2R w - - 0 1)
Onkoud, Abdelaziz
Freie Presse, 2001
(First published on Fri May 25 2001)
#2
11 + 9
| 16210 | Problemschach-Jahrbuch (2001) | 2002 |
SOLUTION
- SOUND
- Sets
- 1...Sxe2
- 2.Re6#
- 1...Sg2
- 2.Re6#
- 1...Sd3
- 2.Re6#
- 1...Sh3
- 2.Re6#
- 1...Sd5
- 2.Re6#
- 1...Sh5
- 2.Re6#
- 1...Se6
- 2.Rxe6#
- 1...Sb6
- 2.Bxc7#
- 1...dxe3
- 2.Qc3#
- 1...d3
- 2.Qc3#
- 1...b4
- 2.Sc4#
- 1...fxe4
- 2.Sf7#
- 1...Sxe2
- Tries
- 1.Sg2?
- threat
- 2.gxf4#
- 1...Sxe2
- 2.Re6#
- 1...Sxg2
- 2.Re6#
- 1...Se6
- 2.Rxe6#
- 1...d3
- 2.Qc3#
- 1...Sd3
- 2.Re6#
- 1...Sh3
- 2.Re6#
- 1...Sd5
- 2.Re6#
- 1...Sh5
- 2.Re6#
- 1...fxe4!
- threat
- 1.Sd5?
- threat
- 2.gxf4#
- 1...Sxe2
- 2.Re6#
- 1...Sxd5
- 2.Re6#
- 1...d3
- 2.Qc3#
- 1...Sg2
- 2.Re6#
- 1...Sd3
- 2.Re6#
- 1...Sh3
- 2.Re6#
- 1...Sh5
- 2.Re6#
- 1...Se6
- 2.Rxe6#
- 1...fxe4!
- threat
- 1.Rf1?
- threat
- 2.gxf4#
- 1...Sxe2
- 2.Re6#
- 1...dxe3
- 2.Qc3#
- 1...Se6
- 2.Rxe6#
- 1...d3
- 2.Qc3#
- 1...Sg2
- 2.Re6#
- 1...Sd3
- 2.Re6#
- 1...Sh3
- 2.Re6#
- 1...Sd5
- 2.Re6#
- 1...Sh5
- 2.Re6#
- 1...Bf3!
- threat
- 1.Qa5?
- threat
- 2.Sc4#
- 1...dxe3
- 2.Qc3#
- 1...fxe4
- 2.Sf7#
- 1...Se6
- 2.Rxe6#
- 1...d3
- 2.Qc3#
- 1...Sd5
- 2.Re6#
- 1...Sb6
- 2.Bxc7#
- 1...Bxe2!
- threat
- 1.Sg2?
- Keys
- 1.Rh4!
- 1...Bxe2
- 2.gxf4#
- 1...Sxe2
- 2.Re6#
- 1...dxe3
- 2.Qc3#
- 1...fxe4
- 2.Sf7#
- 1...Se6
- 2.Rxe6#
- 1...d3
- 2.Qc3#
- 1...Bf3
- 2.gxf4#
- 1...Bh3
- 2.gxf4#
- 1...Bh5
- 2.gxf4#
- 1...Sg2
- 2.Re6#
- 1...Sd3
- 2.Re6#
- 1...Sh3
- 2.Re6#
- 1...Sd5
- 2.Re6#
- 1...Sh5
- 2.Re6#
- 1...Sb6
- 2.Bxc7#
- 1...b4
- 2.Sc4#
- 1...Bxe2
- 1.Rh4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- S(b);N_GUARD,XP(D)::R1(I)
- S(b);N_GUARD::R1(I)
- S(b);N_GUARD::R1(I),XS(b)
- S(i);N_GUARD::B(J),XP(h)
- P(a);OGATEB,XS(E)::QAB(A)
- P(a);OGATEB::QAB(A)
- P(d);N_GUARD::S(E)
- P(f);SBLOCK,XP(G)::S(H)
- Tries
- Try
- S(E);
- Threat
- P(F),XS(b)
- Vars
- S(b);N_GUARD,XP(D)::R1(I)
- S(b);N_GUARD,XS(E)::R1(I)
- S(b);N_GUARD::R1(I),XS(b)
- P(a);OGATEB::QAB(A)
- S(b);N_GUARD::R1(I)
- Refutation
- P(f);XP(G)
- Try
- S(E);
- Threat
- P(F),XS(b)
- Vars
- S(b);N_GUARD,XP(D)::R1(I)
- S(b);N_GUARD,XS(E)::R1(I)
- P(a);OGATEB::QAB(A)
- S(b);N_GUARD::R1(I)
- S(b);N_GUARD::R1(I),XS(b)
- Refutation
- P(f);XP(G)
- Try
- R(B);
- Threat
- P(F),XS(b)
- Vars
- S(b);N_GUARD,XP(D)::R1(I)
- P(a);OGATEB,XS(E)::QAB(A)
- S(b);N_GUARD::R1(I),XS(b)
- P(a);OGATEB::QAB(A)
- S(b);N_GUARD::R1(I)
- Refutation
- B(c);
- Try
- Q(A);N_PINP(h),P_PINP(d)
- Threat
- S(E)
- Vars
- P(a);OGATEB,XS(E)::QAB(A)
- P(f);SBLOCK,XP(G)::S(H)
- S(b);N_GUARD::R1(I),XS(b)
- P(a);OGATEB::QAB(A)
- S(b);N_GUARD,N_SPINP(d),P_SPINP(h)::R1(I)
- S(i);N_GUARD::B(J),XP(h)
- Refutation
- B(c);XP(D)
- Try
- Actual
- R(B);
- Vars
- B(c);XP(D)::P(F),XS(b)
- S(b);N_GUARD,XP(D)::R1(I)
- P(a);OGATEB,XS(E)::QAB(A)
- P(f);SBLOCK,XP(G)::S(H)
- S(b);N_GUARD::R1(I),XS(b)
- P(a);OGATEB::QAB(A)
- B(c);::P(F),XS(b)
- S(b);N_GUARD::R1(I)
- S(i);N_GUARD::B(J),XP(h)
- P(d);N_GUARD::S(E)
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).