MESON Chess Problem Database
Problem Display
PID: 16066 (K6B/4p3/1pQ1BP1b/pP1PNqRr/1PpkPpp1/8/3P1N2/8 w - - 0 1)
Onkoud, Abdelaziz
1st Prize, Probleemblad, 2000
#2
13 + 10
| 102 | Probleemblad | 2007 |
| 145 | StrateGems | 2008 |
SOLUTION
- SOUND
- Sets
- 1...Qxe4
- 2.Qxc4#
- 2.Qxb6#
- 1...Qxe6
- 2.Qxc4#
- 1...Qg6
- 2.Qxc4#
- 2.Qxb6#
- 1...Qh7
- 2.Qxc4#
- 2.Qxb6#
- 1...Qxe5
- 2.Qxb6#
- 1...Qxf6
- 2.Qxc4#
- 2.Qxb6#
- 1...c3
- 2.Qxc3#
- 1...g3
- 2.Sf3#
- 1...Qxe4
- Tries
- 1.Sfxg4?
- threat
- 2.Qxc4#
- 1...Kxe4
- 2.Qxc4#
- 1...c3
- 2.Qc4#
- 1...Qxe5!
- threat
- 1.Sed3?
- threat
- 2.Qxb6#
- 1...Qxd5
- 2.Qxd5#
- 1...cxd3
- 2.Qc3#
- 1...c3
- 2.Qxc3#
- 1...Qxe6!
- threat
- 1.Sexg4?
- threat
- 2.Qxb6#
- 1...Qxd5
- 2.Qxd5#
- 1...c3
- 2.Qxc3#
- 2.dxc3#
- 1...Qxe6!
- threat
- 1.Sg6?
- threat
- 2.Qxb6#
- 1...Qxd5
- 2.Qxd5#
- 1...c3
- 2.Qxc3#
- 1...Qxe6!
- threat
- 1.Sd7?
- threat
- 2.Qxb6#
- 1...Qxd5
- 2.Qxd5#
- 1...c3
- 2.Qxc3#
- 1...Qxe6!
- threat
- 1.Sf7?
- threat
- 2.Qxb6#
- 1...Qxd5
- 2.Qxd5#
- 1...c3
- 2.Qxc3#
- 1...Qxe6!
- threat
- 1.Rxf5?
- threat
- 2.Qxc4#
- 2.Qxb6#
- 1...c3
- 2.Qxc3#
- 2.Qc4#
- 2.Qxb6#
- 1...Rxf5!
- threat
- 1.Qc5+?
- 1...bxc5
- 2.Sc6#
- 1...Kxe5!
- 1...bxc5
- 1.Qd6?
- threat
- 2.Sc6#
- 1...Qxe5
- 2.Qxe5#
- 2.Qxb6#
- 1...c3!
- threat
- 1.Qc7?
- threat
- 2.Sc6#
- 1...Qxe6
- 2.Qxc4#
- 1...Qxe5
- 2.Qxe5#
- 2.Qxb6#
- 1...c3
- 2.Qxc3#
- 1...axb4!
- threat
- 1.f7?
- threat
- 2.Sf3#
- 2.Qxc4#
- 2.Qxb6#
- 1...Qxe6
- 2.Sf3#
- 2.Qxc4#
- 1...Qxe5
- 2.Bxe5#
- 2.Qxb6#
- 1...Qf6
- 2.Qxc4#
- 2.Qxb6#
- 1...c3
- 2.Sf3#
- 2.Qxc3#
- 2.Qc4#
- 2.Qxb6#
- 1...f3
- 2.Sxf3#
- 2.Qxc4#
- 2.Qxb6#
- 1...Bg7!
- threat
- 1.Sfxg4?
- Keys
- 1.d6!
- threat
- 2.Qd5#
- 1...Kxe5
- 2.Qd5#
- 1...Qxe4
- 2.Qxe4#
- 1...Qxe6
- 2.Qxb6#
- 1...Qxe5
- 2.Qxc4#
- threat
- 1.d6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 2
- REMOVED MATES = 2
- Sets
- Q(f);XB(J)::QAR1(I),XP(a)
- Q(f);XS(G)::QAB(I),XP(h)
- P(a);OGATE::QAB1(I),XP(a)
- P(d);N_GUARD::S(G)
- Tries
- Try
- S(B);XP(d)
- Threat
- QAR1(I),XP(a)
- Vars
- K(b);P-FLIGHT,XP(D)::QAR2(I),XP(a)
- P(a);::QAR1(I)
- Refutation
- Q(f);XS(G)
- Try
- S(G);
- Threat
- QAB(I),XP(h)
- Vars
- Q(f);OGATE,P_PINQ(I),XP(F)::QAR1(I),XQ(f)
- P(a);OGATE,XS(G)::QAB1(I)
- P(a);OGATE::QAB1(I),XP(a)
- Refutation
- Q(f);XB(J)
- Try
- S(G);XP(d)
- Threat
- QAB(I),XP(h)
- Vars
- Q(f);OGATE,P_PINQ(I),XP(F)::QAR1(I),XQ(f)
- Refutation
- Q(f);XB(J)
- Try
- S(G);
- Threat
- QAB(I),XP(h)
- Vars
- Q(f);OGATE,P_PINQ(I),XP(F)::QAR1(I),XQ(f)
- P(a);OGATE::QAB1(I),XP(a)
- Refutation
- Q(f);XB(J)
- Try
- S(G);
- Threat
- QAB(I),XP(h)
- Vars
- Q(f);OGATE,P_PINQ(I),XP(F)::QAR1(I),XQ(f)
- P(a);OGATE::QAB1(I),XP(a)
- Refutation
- Q(f);XB(J)
- Try
- S(G);
- Threat
- QAB(I),XP(h)
- Vars
- Q(f);OGATE,P_PINQ(I),XP(F)::QAR1(I),XQ(f)
- P(a);OGATE::QAB1(I),XP(a)
- Refutation
- Q(f);XB(J)
- Try
- R(H);XQ(f)
- Threat
- DUALS(2)
- Refutation
- R(g);XR(H)
- Try
- Q(I);CHECK
- Vars
- P(h);XQ(I)::S(G)
- Refutation
- K(b);P_SPINQ(f),S_FLIGHT,XS(G)
- Try
- Q(I);
- Threat
- S(G)
- Refutation
- P(a);
- Try
- Q(I);
- Threat
- S(G)
- Vars
- Q(f);XB(J)::QAR1(I),XP(a)
- P(a);OGATE::QAB1(I),XP(a)
- Refutation
- P(e);XP(C)
- Try
- P(K);
- Threat
- DUALS(3)
- Refutation
- B(i);
- Try
- Actual
- P(F);
- Threat
- QAR1(I)
- Vars
- K(b);P_SPINQ(f),S_FLIGHT,XS(G)::QAR1(I)
- Q(f);OGATE,P_PINQ(I),XP(D)::QAR1(I),XQ(f)
- Q(f);XB(J)::QAB(I),XP(h)
- Q(f);XS(G)::QAR1(I),XP(a)
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).