MESON Chess Problem Database
Problem Display
PID: 27359 (2n5/3B4/b7/1n1kBpp1/N2p1P2/1K2QP2/6N1/8 w - - 0 1)
Onkoud, Abdelaziz
StrateGems, 2001
#2
8 + 7
SOLUTION
- SOUND
- Sets
- 1...Sa3
- 2.Qxd4#
- 1...Sc3
- 2.Qxd4#
- 1...Sbd6
- 2.Qxd4#
- 1...Sba7
- 2.Qxd4#
- 1...Sc7
- 2.Qxd4#
- 1...dxe3
- 2.Sxe3#
- 1...d3
- 2.Qc5#
- 1...gxf4
- 2.Sxf4#
- 1...Sa3
- Tries
- 1.Bc7?
- threat
- 2.Qe5#
- 2.Qe6#
- 1...Sxc7
- 2.Qe5#
- 1...d3
- 2.Qc5#
- 2.Qe5#
- 1...dxe3!
- threat
- 1.Bb8?
- threat
- 2.Qe5#
- 2.Qe6#
- 1...Sc7
- 2.Qe5#
- 1...d3
- 2.Qc5#
- 2.Qe5#
- 1...dxe3!
- threat
- 1.Qc1?
- threat
- 2.Qc4#
- 2.Qc5#
- 2.Qc6#
- 1...gxf4
- 2.Qc5#
- 1...Bb7
- 2.Qc4#
- 2.Qc5#
- 1...Sa3
- 2.Qc5#
- 2.Qc6#
- 1...Sbd6
- 2.Qc5#
- 2.Qc6#
- 1...Sba7
- 2.Qc5#
- 1...Sc7
- 2.Qc5#
- 2.Qc6#
- 1...Sb6
- 2.Sxb6#
- 2.Qc5#
- 2.Qc6#
- 1...Scd6
- 2.Sb6#
- 2.Qc5#
- 2.Qc6#
- 1...Sca7
- 2.Sb6#
- 2.Qc4#
- 2.Qc5#
- 1...Se7
- 2.Sb6#
- 2.Qc4#
- 2.Qc5#
- 1...Sc3!
- threat
- 1.Qc3?
- threat
- 2.Qc4#
- 2.Qc5#
- 2.Qc6#
- 1...dxc3
- 2.Se3#
- 1...gxf4
- 2.Qc5#
- 1...Bb7
- 2.Qc4#
- 2.Qc5#
- 1...Sa3
- 2.Qxd4#
- 2.Qc5#
- 2.Qc6#
- 1...Sbd6
- 2.Qxd4#
- 2.Qc5#
- 2.Qc6#
- 1...Sba7
- 2.Qxd4#
- 2.Qc5#
- 1...Sc7
- 2.Qxd4#
- 2.Qc5#
- 2.Qc6#
- 1...Sb6
- 2.Sxb6#
- 2.Qc5#
- 2.Qc6#
- 1...Scd6
- 2.Sb6#
- 2.Qc5#
- 2.Qc6#
- 1...Sca7
- 2.Sb6#
- 2.Qc4#
- 2.Qc5#
- 1...Se7
- 2.Sb6#
- 2.Qc4#
- 2.Qc5#
- 1...Sxc3!
- threat
- 1.Qd3?
- threat
- 2.Se3#
- 2.Qc4#
- 1...Sc3
- 2.Se3#
- 2.Qxd4#
- 1...Sa3
- 2.Se3#
- 2.Qxd4#
- 1...Sbd6
- 2.Se3#
- 2.Qxd4#
- 1...Sba7
- 2.Se3#
- 2.Qxd4#
- 1...Sc7
- 2.Se3#
- 2.Qxd4#
- 1...Sb6
- 2.Se3#
- 1...Scd6
- 2.Se3#
- 1...gxf4!
- threat
- 1.fxg5?
- threat
- 2.Sf4#
- 1...f4
- 2.Sxf4#
- 2.Qe4#
- 1...dxe3!
- threat
- 1.Bc7?
- Keys
- 1.Kb4!
- threat
- 2.Qb3#
- 1...dxe3
- 2.Sxe3#
- 1...gxf4
- 2.Sxf4#
- 1...Sa3
- 2.Qxd4#
- 1...Sc3
- 2.Qxd4#
- 1...Sbd6
- 2.Qxd4#
- 1...Sba7
- 2.Qxd4#
- 1...Sc7
- 2.Qxd4#
- 1...Sb6
- 2.Sxb6#
- 1...Scd6
- 2.Sb6#
- 1...d3
- 2.Qc5#
- threat
- 1.Kb4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- S(b);N_GUARD::QAR1(C),XP(a)
- P(a);XQ(C)::S(A),XP(a)
- P(a);OGATE::QAR1(C)
- P(e);XP(F)::S(A),XP(e)
- Tries
- Try
- B(G);
- Threat
- DUALS(2)
- Vars
- S(b);XB(G)::QAR1(C)
- Refutation
- P(a);XQ(C)
- Try
- B(G);
- Threat
- DUALS(2)
- Vars
- S(b);::QAR1(C)
- Refutation
- P(a);XQ(C)
- Try
- Q(C);
- Threat
- DUALS(3)
- Vars
- P(e);XP(F)::QAR1(C)
- S(b);::QAR1(C)
- Refutation
- S(b);
- Try
- Q(C);
- Threat
- DUALS(3)
- Vars
- P(a);N_GUARD,XQ(C)::S(A)
- P(e);XP(F)::QAR1(C)
- Refutation
- S(b);XQ(C)
- Try
- Q(C);P_PINP(a)
- Threat
- DUALS(2)
- Vars
- S(g);::S(A)
- Refutation
- P(e);XP(F)
- Try
- P(F);XP(e)
- Threat
- S(A)
- Refutation
- P(a);XQ(C)
- Try
- Actual
- K(B);P-FLIGHT
- Threat
- QAB(C)
- Vars
- P(a);XQ(C)::S(A),XP(a)
- P(e);XP(F)::S(A),XP(e)
- S(b);N_GUARD::QAR1(C),XP(a)
- S(g);N_GUARD::S(E),XS(g)
- S(g);N_GUARD::S(E)
- P(a);OGATE::QAR1(C)
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).