MESON Chess Problem Database
Problem Display
PID: 233733 (1B3N2/3K2p1/R1p2kPp/4R3/2Bp1Ppn/4n3/3NQ3/4r2b w - - 0 1)
Onkoud, Abdelaziz
Freie Presse, 1997
#2
10 + 10
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Be4
- 2.Sxe4#
- 1...Seg2
- 2.Se4#
- 2.Rxc6#
- 1...Sd5
- 2.Rxc6#
- 1...Sef5
- 2.Re6#
- 1...Shg2
- 2.Se4#
- 2.Rxc6#
- 1...Sf3
- 2.Se4#
- 2.Rxc6#
- 1...Shf5
- 2.Re6#
- 1...Sxg6
- 2.Sh7#
- 1...Be4
- Tries
- 1.Bd3?
- threat
- 2.Sh7#
- 2.Re6#
- 1...Be4
- 2.Sxe4#
- 1...Bd5
- 2.Sh7#
- 1...Sef5
- 2.Re6#
- 1...Shf5
- 2.Re6#
- 1...Sxg6!
- threat
- 1.Bd6?
- threat
- 2.Be7#
- 1...Sxg6
- 2.Sh7#
- 1...Sef5
- 2.Re6#
- 1...Shf5
- 2.Re6#
- 1...Sd5!
- threat
- 1.Rf5+?
- 1...Sexf5
- 2.Be5#
- 1...Shxf5
- 2.Be5#
- 1...Kxf5!
- 1...Sexf5
- 1.Rg5?
- threat
- 2.Sh7#
- 2.Be5#
- 1...Sxc4
- 2.Sh7#
- 1...Sxg6
- 2.Sh7#
- 1...Sf3
- 2.Se4#
- 2.Sh7#
- 2.Rxc6#
- 1...hxg5!
- threat
- 1.Rh5?
- threat
- 2.Be5#
- 1...Sxg6
- 2.Sh7#
- 1...Sf3
- 2.Se4#
- 2.Rxc6#
- 1...Sxc4!
- threat
- 1.Re7?
- threat
- 2.Rf7#
- 1...Kf5
- 2.Rf7#
- 1...Bd5!
- threat
- 1.Qd3?
- threat
- 2.Sh7#
- 2.Re6#
- 1...Sxc4
- 2.Sh7#
- 1...Sxg6
- 2.Sh7#
- 2.Qxg6#
- 1...Be4
- 2.Sxe4#
- 1...Bd5
- 2.Sh7#
- 1...Sd1
- 2.Sh7#
- 1...Sf1
- 2.Sh7#
- 1...Sc2
- 2.Sh7#
- 1...Seg2
- 2.Sh7#
- 2.Rxc6#
- 1...Sd5
- 2.Sh7#
- 2.Rxc6#
- 1...Shf5
- 2.Re6#
- 1...Sef5!
- threat
- 1.Qxg4?
- threat
- 2.Sh7#
- 2.Re6#
- 2.Qe6#
- 2.Qxh4#
- 1...Sxc4
- 2.Sh7#
- 2.Qe6#
- 2.Qxh4#
- 1...Sxg6
- 2.Sh7#
- 2.Qe6#
- 2.Qxg6#
- 1...Rg1
- 2.Sh7#
- 2.Re6#
- 2.Qe6#
- 1...Bd5
- 2.Sh7#
- 2.Qxh4#
- 1...Sd1
- 2.Sh7#
- 2.Qe6#
- 2.Qxh4#
- 1...Sf1
- 2.Sh7#
- 2.Qe6#
- 2.Qxh4#
- 1...Sc2
- 2.Sh7#
- 2.Qe6#
- 2.Qxh4#
- 1...Seg2
- 2.Sh7#
- 2.Rxc6#
- 2.Qe6#
- 1...Sd5
- 2.Sh7#
- 2.Rxc6#
- 2.Qe6#
- 2.Qxh4#
- 1...Sef5
- 2.Sh7#
- 1...Shg2
- 2.Se4#
- 2.Sh7#
- 2.Re6#
- 2.Rxc6#
- 2.Qe6#
- 1...Sf3
- 2.Se4#
- 2.Sh7#
- 2.Re6#
- 2.Rxc6#
- 2.Qe6#
- 1...Shf5
- 2.Sh7#
- 2.Re6#
- 1...Sxg4!
- threat
- 1.Qxe1?
- threat
- 2.Qxh4#
- 1...Sxg6
- 2.Sh7#
- 1...Seg2
- 2.Se4#
- 2.Rxc6#
- 1...Sef5
- 2.Re6#
- 1...Shg2
- 2.Se4#
- 2.Rxc6#
- 1...Sf3
- 2.Se4#
- 2.Rxc6#
- 1...Shf5
- 2.Re6#
- 1...g3!
- threat
- 1.Qh2?
- threat
- 2.Qxh4#
- 1...Sxg6
- 2.Sh7#
- 1...Seg2
- 2.Rxc6#
- 1...Shg2
- 2.Se4#
- 2.Rxc6#
- 1...Sf3
- 2.Se4#
- 2.Rxc6#
- 1...Shf5
- 2.Re6#
- 1...Sef5!
- threat
- 1.Bd3?
- Keys
- 1.Bc7!
- threat
- 2.Bd8#
- 1...Sxg6
- 2.Sh7#
- 1...Sd5
- 2.Rxc6#
- 1...Sef5
- 2.Re6#
- 1...Shf5
- 2.Re6#
- threat
- 1.Bc7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 1
- Sets
- B(b);N_GUARD::S(A),XB(b)
- S(c);S_CUTB(b)::R(F),XP(g)
- S(c);SBLOCK::R1(E)
- S(f);SBLOCK::R1(E)
- S(f);SBLOCK,XP(G)::S(J)
- Tries
- Try
- B(C);
- Threat
- DUALS(2)
- Vars
- B(b);N_GUARD::S(A),XB(b)
- B(b);::S(J)
- S(c);::R1(E)
- S(f);::R1(E)
- Refutation
- S(f);XP(G)
- Try
- B(I);N_PINP(g)
- Threat
- B(I)
- Vars
- S(f);SBLOCK,XP(G)::S(J)
- S(c);SBLOCK::R1(E)
- S(f);SBLOCK::R1(E)
- Refutation
- S(c);
- Try
- R(E);CHECK
- Vars
- S(c);SBLOCK,XR(E)::B(I)
- S(f);SBLOCK,XR(E)::B(I)
- Refutation
- K(h);N_SPINP(g),P-FLIGHT,XR(E)
- Try
- R(E);
- Threat
- DUALS(2)
- Vars
- S(c);XB(C)::S(J)
- S(f);XP(G)::S(J)
- Refutation
- P(i);XR(E)
- Try
- R(E);
- Threat
- B(I)
- Vars
- S(f);SBLOCK,XP(G)::S(J)
- Refutation
- S(c);XB(C)
- Try
- R(E);
- Threat
- R1(E)
- Vars
- K(h);N_SPINP(g),P-FLIGHT::R(E)
- Refutation
- B(b);
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- S(c);XB(C)::S(J)
- B(b);N_GUARD::S(A),XB(b)
- B(b);::S(J)
- S(c);::S(J)
- S(f);::R1(E)
- Refutation
- S(c);
- Try
- Q(B);XP(e)
- Threat
- DUALS(4)
- Vars
- S(c);::S(J)
- Refutation
- S(c);XQ(B)
- Try
- Q(B);XR(a)
- Threat
- QAB(B),XS(f)
- Vars
- S(f);SBLOCK,XP(G)::S(J)
- S(c);SBLOCK::R1(E)
- S(f);SBLOCK::R1(E)
- Refutation
- P(e);
- Try
- Q(B);
- Threat
- QAB(B),XS(f)
- Vars
- S(f);SBLOCK,XP(G)::S(J)
- S(c);S_CUTB(b)::R(F),XP(g)
- S(f);SBLOCK::R1(E)
- Refutation
- S(c);
- Try
- Actual
- B(I);
- Threat
- B(I)
- Vars
- S(f);SBLOCK,XP(G)::S(J)
- S(c);S_CUTB(b)::R(F),XP(g)
- S(c);SBLOCK::R1(E)
- S(f);SBLOCK::R1(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).