MESON Chess Problem Database
Problem Display
PID: 245329 (q3rB2/p1R1npN1/2b2R2/2P2P2/2Pk1P2/Q4PK1/BP3N2/8 w - - 0 1)
Onkoud, Abdelaziz
Schach, 2007
#2
14 + 7
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Bxf3
- 2.Qc3#
- 2.Qd3#
- 1...Ba4
- 2.Qc3#
- 2.Qd3#
- 1...Be4
- 2.Qc3#
- 1...Bb5
- 2.Qc3#
- 2.Qd3#
- 1...Bd5
- 2.Qc3#
- 2.Qd3#
- 1...Bb7
- 2.Qc3#
- 2.Qd3#
- 1...Bd7
- 2.Qc3#
- 2.Qd3#
- 1...Sd5
- 2.Qd3#
- 1...Sxf5+
- 2.Sxf5#
- 1...Sg6
- 2.Qc3#
- 2.Qd3#
- 1...Sc8
- 2.Qc3#
- 2.Qd3#
- 1...Sg8
- 2.Qc3#
- 2.Qd3#
- 1...Bxf3
- Tries
- 1.Sd1?
- threat
- 2.Qe3#
- 1...Sxf5+
- 2.Sxf5#
- 1...Sg6
- 2.Qc3#
- 1...Sc8
- 2.Qc3#
- 1...Sg8
- 2.Qc3#
- 1...Sd5!
- threat
- 1.Se4?
- threat
- 2.Qc3#
- 1...Sxf5+
- 2.Sxf5#
- 1...Sd5!
- threat
- 1.Sg4?
- threat
- 2.Qe3#
- 1...Sxf5+
- 2.Sxf5#
- 1...Sg6
- 2.Qc3#
- 1...Sc8
- 2.Qc3#
- 1...Sg8
- 2.Qc3#
- 1...Sd5!
- threat
- 1.Bxe7?
- threat
- 2.Qc3#
- 2.Qd3#
- 1...Be4
- 2.Qc3#
- 1...Rxe7!
- threat
- 1.Rfxc6?
- threat
- 2.Qc3#
- 2.Qd3#
- 1...Sxf5+
- 2.Sxf5#
- 1...Sd5
- 2.Qd3#
- 1...Qxc6!
- threat
- 1.Rd6+?
- 1...Bd5
- 2.Qc3#
- 2.Qd3#
- 1...Sd5!
- 1...Bd5
- 1.Rxf7?
- threat
- 2.Se6#
- 1...Sxf5+
- 2.Sxf5#
- 1...Bd5
- 2.Qc3#
- 2.Qd3#
- 1...Bd7
- 2.Qc3#
- 2.Qd3#
- 1...Sd5
- 2.Qd3#
- 1...Sg6
- 2.Qc3#
- 2.Qd3#
- 1...Sc8
- 2.Qc3#
- 2.Qd3#
- 1...Sg8
- 2.Qc3#
- 2.Qd3#
- 1...Qc8!
- threat
- 1.Rcxc6?
- threat
- 2.Qc3#
- 2.Qd3#
- 1...Sxf5+
- 2.Sxf5#
- 1...Sd5
- 2.Qd3#
- 1...Qxc6!
- threat
- 1.b4?
- threat
- 2.Qd3#
- 1...Sxf5+
- 2.Sxf5#
- 1...Be4!
- threat
- 1.Sd1?
- Keys
- 1.Re6!
- threat
- 2.Qe3#
- 1...Sxf5+
- 2.Sxf5#
- 1...fxe6
- 2.Sxe6#
- 1...Sd5
- 2.Qd3#
- 1...Be4
- 2.Qc3#
- threat
- 1.Re6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- B(b);::QAB1(D)
- S(d);::QAR1(D)
- S(d);CHECK,XP(J)::S(M),XS(d)
- Tries
- Try
- S(C);
- Threat
- QAB1(D)
- Vars
- S(d);CHECK,XP(J)::S(M),XS(d)
- S(d);::QAB1(D)
- Refutation
- S(d);
- Try
- S(C);
- Threat
- QAB1(D)
- Vars
- S(d);CHECK,XP(J)::S(M),XS(d)
- Refutation
- S(d);
- Try
- S(C);
- Threat
- QAB1(D)
- Vars
- S(d);CHECK,XP(J)::S(M),XS(d)
- S(d);::QAB1(D)
- Refutation
- S(d);
- Try
- B(N);XS(d)
- Threat
- DUALS(2)
- Vars
- B(b);::QAB1(D)
- Refutation
- R(g);XB(N)
- Try
- R(K);XB(b)
- Threat
- DUALS(2)
- Vars
- S(d);CHECK,XP(J)::S(M),XS(d)
- S(d);::QAR1(D)
- Refutation
- Q(f);XR(K)
- Try
- R(K);CHECK
- Refutation
- S(d);P_SPINS(d)
- Try
- R(K);XP(e)
- Threat
- S(M)
- Vars
- S(d);CHECK,XP(J)::S(M),XS(d)
- S(d);::QAR1(D)
- Refutation
- Q(f);
- Try
- R(L);XB(b)
- Threat
- DUALS(2)
- Vars
- S(d);CHECK,XP(J)::S(M),XS(d)
- S(d);::QAR1(D)
- Refutation
- Q(f);XR(L)
- Try
- P(B);
- Threat
- QAR1(D)
- Vars
- S(d);CHECK,XP(J)::S(M),XS(d)
- Refutation
- B(b);
- Try
- Actual
- R(K);
- Threat
- QAB1(D)
- Vars
- S(d);CHECK,XP(J)::S(M),XS(d)
- P(e);XR(K)::S(M),XP(e)
- S(d);::QAR1(D)
- B(b);::QAB1(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).