MESON Chess Problem Database
Problem Display
PID: 80093 (2K3br/Q1n2nRr/1bpNk1Nq/3RP3/B3P3/B7/8/8 w - - 0 1)
Onkoud, Abdelaziz
Probleemblad, 2008
#2
10 + 9
SOLUTION
- SOUND
- Sets
- 1...Sb5
- 2.Sf8#
- 2.Qd7#
- 2.Qe7#
- 1...Sxd5
- 2.Qd7#
- 1...Sa6
- 2.Sf8#
- 2.Qd7#
- 2.Qe7#
- 1...Sa8
- 2.Sf8#
- 2.Qd7#
- 2.Qe7#
- 1...Se8
- 2.Sf8#
- 2.Qd7#
- 2.Qe7#
- 1...Sg5
- 2.Sf4#
- 2.Sf8#
- 1...Sxd6+
- 2.Rxd6#
- 1...Sd8
- 2.Sf8#
- 1...cxd5
- 2.Bd7#
- 1...c5
- 2.Bd7#
- 1...Sb5
- Tries
- 1.Sc4?
- threat
- 2.Sf8#
- 1...Sd6+
- 2.Rxd6#
- 1...Qxg7
- 2.Sf4#
- 1...Qxg6
- 2.Rxg6#
- 1...Sxe5
- 2.Rd6#
- 1...c5
- 2.Bd7#
- 1...Bc5!
- threat
- 1.Sf5?
- threat
- 2.Sf8#
- 1...Sd6+
- 2.Rxd6#
- 1...Qxg7
- 2.Sf4#
- 1...Qxg6
- 2.Rxg6#
- 1...Sxd5
- 2.Qd7#
- 1...Sxe5
- 2.Rd6#
- 1...cxd5
- 2.Bd7#
- 1...Bc5!
- threat
- 1.Sb7?
- threat
- 2.Sf8#
- 1...Sd6+
- 2.Rxd6#
- 1...Qxg7
- 2.Sf4#
- 1...Qxg6
- 2.Rxg6#
- 1...Sxe5
- 2.Rd6#
- 1...cxd5
- 2.Bd7#
- 1...Bc5
- 2.Sxc5#
- 1...c5
- 2.Bd7#
- 1...Sxd5!
- threat
- 1.Sxf7?
- threat
- 2.Sf8#
- 2.Sd8#
- 2.Rd6#
- 1...Qxg7
- 2.Sg5#
- 2.Sd8#
- 1...Qxg6
- 2.Sd8#
- 1...Rxg7
- 2.Sd8#
- 1...Sxd5
- 2.Sf8#
- 2.Qd7#
- 1...cxd5
- 2.Sf8#
- 2.Sd8#
- 2.Bd7#
- 2.Qxb6#
- 1...Bc5
- 2.Sd8#
- 1...Qd2
- 2.Sf8#
- 2.Sd8#
- 1...Qg5
- 2.Sf8#
- 2.Sxg5#
- 2.Rd6#
- 1...Qh4
- 2.Sf8#
- 2.Rd6#
- 1...Sb5
- 2.Sf8#
- 2.Qd7#
- 2.Qe7#
- 1...Sa6
- 2.Sf8#
- 2.Rd6#
- 2.Qd7#
- 2.Qe7#
- 1...Sa8
- 2.Sf8#
- 2.Rd6#
- 2.Qd7#
- 2.Qe7#
- 1...Se8
- 2.Sf8#
- 2.Qd7#
- 2.Qe7#
- 1...c5
- 2.Sd8#
- 2.Bd7#
- 2.Rd6#
- 2.Qxb6#
- 1...Bxf7+!
- threat
- 1.Qxc7?
- threat
- 2.Sf8#
- 2.Qd7#
- 2.Qe7#
- 1...Sxd6+
- 2.Rxd6#
- 2.Qxd6#
- 1...Qxg7
- 2.Sf4#
- 2.Qd7#
- 2.Qe7#
- 1...Qxg6
- 2.Rxg6#
- 2.Qd7#
- 1...Sxe5
- 2.Qe7#
- 1...cxd5
- 2.Bd7#
- 2.Qd7#
- 2.Qe7#
- 1...Qg5
- 2.Sf8#
- 2.Qd7#
- 1...Qh4
- 2.Sf8#
- 2.Qd7#
- 1...Bxc7!
- threat
- 1.Sc4?
- Keys
- 1.Se8!
- threat
- 2.Sf8#
- 1...Sd6+
- 2.Rxd6#
- 1...Qxg7
- 2.Sf4#
- 1...Qxg6
- 2.Rxg6#
- 1...Sxd5
- 2.Qd7#
- 1...cxd5
- 2.Bd7#
- 1...Bc5
- 2.Sxc7#
- 1...c5
- 2.Bd7#
- threat
- 1.Se8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 1
- Sets
- S(e);OGATE,XR(D)::QAB1(H)
- S(f);CHECK,OGATE,XS(F)::R1(D),XS(f)
- S(f);::S(G)
- P(b);OGATE,XR(D)::B(B)
- P(b);OGATE::B(B)
- Tries
- Try
- S(F);
- Threat
- S(G)
- Vars
- S(f);CHECK,N_GUARD::R1(D),XS(f)
- Q(d);N_GUARD,XR(I)::S(G)
- Q(d);OGATE,XS(G)::R(I),XQ(d)
- S(f);N_GUARD,XP(E)::R1(D)
- P(b);OGATE::B(B)
- Refutation
- B(a);
- Try
- S(F);
- Threat
- S(G)
- Vars
- S(f);CHECK,N_GUARD::R1(D),XS(f)
- Q(d);N_GUARD,XR(I)::S(G)
- Q(d);OGATE,XS(G)::R(I),XQ(d)
- S(e);OGATE,XR(D)::QAB1(H)
- S(f);N_GUARD,XP(E)::R1(D)
- P(b);OGATE,XR(D)::B(B)
- Refutation
- B(a);
- Try
- S(F);
- Threat
- S(G)
- Vars
- S(f);CHECK,N_GUARD::R1(D),XS(f)
- Q(d);N_GUARD,XR(I)::S(G)
- Q(d);OGATE,XS(G)::R(I),XQ(d)
- S(f);N_GUARD,XP(E)::R1(D)
- P(b);OGATE,XR(D)::B(B)
- B(a);N_GUARD::S(F),XB(a)
- P(b);OGATE::B(B)
- Refutation
- S(e);XR(D)
- Try
- S(F);XS(f)
- Threat
- DUALS(3)
- Vars
- Q(d);XS(G)::S(F)
- R(g);XR(I)::S(F)
- B(a);::S(F)
- Refutation
- B(h);CHECK,XS(F)
- Try
- Q(H);XS(e)
- Threat
- DUALS(3)
- Vars
- S(f);XP(E)::QAR1(H)
- Refutation
- B(a);XQ(H)
- Try
- Actual
- S(F);
- Threat
- S(G)
- Vars
- S(f);CHECK,N_GUARD::R1(D),XS(f)
- Q(d);N_GUARD,XR(I)::S(G)
- Q(d);OGATE,XS(G)::R(I),XQ(d)
- S(e);OGATE,XR(D)::QAB1(H)
- P(b);OGATE,XR(D)::B(B)
- B(a);N_GUARD::S(F),XS(e)
- P(b);OGATE::B(B)
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).