MESON Chess Problem Database
Problem Display
PID: 102509 (8/6p1/2Bn1pK1/1p3pp1/1N3k2/2Q5/6R1/5n2 w - - 0 1)
Chelebi, Edgard J
L'Echiquier de France, 1957
#2
5 + 8
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Sd2
- 2.Qg3#
- 1...Sh2
- 2.Qg3#
- 1...Se3
- 2.Sd3#
- 1...Sg3
- 2.Qxg3#
- 1...Sc4
- 2.Qd4#
- 1...Se4
- 2.Sd5#
- 1...Sb7
- 2.Qd4#
- 1...Sf7
- 2.Qd4#
- 1...Sc8
- 2.Qd4#
- 1...Se8
- 2.Qd4#
- 1...g4
- 2.Rf2#
- 1...Sd2
- Tries
- 1.Kh5?
- threat
- 2.Rf2#
- 1...Sg3+
- 2.Qxg3#
- 1...Sd2
- 2.Qg3#
- 1...Sh2
- 2.Qg3#
- 1...Se3
- 2.Sd3#
- 1...Se4
- 2.Sd5#
- 1...g6+!
- threat
- 1.Bd5?
- 1...Sg3
- 2.Qxg3#
- 1...Sd2
- 2.Qg3#
- 1...Sh2
- 2.Qg3#
- 1...Se3
- 2.Sd3#
- 1...Sc4
- 2.Qd4#
- 1...Sb7
- 2.Qd4#
- 1...Sf7
- 2.Qd4#
- 1...Sc8
- 2.Qd4#
- 1...Se8
- 2.Qd4#
- 1...g4
- 2.Rf2#
- 1...Se4!
- 1...Sg3
- 1.Bb7?
- 1...Sg3
- 2.Qxg3#
- 1...Se4
- 2.Sd5#
- 1...Sd2
- 2.Qg3#
- 1...Sh2
- 2.Qg3#
- 1...Se3
- 2.Sd3#
- 1...Sc4
- 2.Qd4#
- 1...Sf7
- 2.Qd4#
- 1...Sc8
- 2.Qd4#
- 1...Se8
- 2.Qd4#
- 1...g4
- 2.Rf2#
- 1...Sxb7!
- 1...Sg3
- 1.Ba8?
- 1...Sg3
- 2.Qxg3#
- 1...Se4
- 2.Sd5#
- 1...Sd2
- 2.Qg3#
- 1...Sh2
- 2.Qg3#
- 1...Se3
- 2.Sd3#
- 1...Sc4
- 2.Qd4#
- 1...Sf7
- 2.Qd4#
- 1...Sc8
- 2.Qd4#
- 1...Se8
- 2.Qd4#
- 1...g4
- 2.Rf2#
- 1...Sb7!
- 1...Sg3
- 1.Rxg5?
- 1...Se4
- 2.Sd5#
- 1...Sd2
- 2.Qg3#
- 1...Sh2
- 2.Qg3#
- 1...Se3
- 2.Sd3#
- 1...Sg3
- 2.Qxg3#
- 1...Sc4
- 2.Qd4#
- 1...Sb7
- 2.Qd4#
- 1...Sf7
- 2.Qd4#
- 1...Sc8
- 2.Qd4#
- 1...Se8
- 2.Qd4#
- 1...fxg5!
- 1...Se4
- 1.Qe1?
- threat
- 2.Sd3#
- 1...Sg3
- 2.Qxg3#
- 1...Se4!
- threat
- 1.Qe3+?
- 1...Sxe3
- 2.Sd3#
- 1...Kxe3!
- 1...Sxe3
- 1.Qh3?
- threat
- 2.Sd3#
- 1...Sg3
- 2.Qxg3#
- 1...Ke5!
- threat
- 1.Kh5?
- Keys
- 1.Rg1!
- 1...Sg3
- 2.Qxg3#
- 1...Se4
- 2.Sd5#
- 1...Sd2
- 2.Qg3#
- 1...Sh2
- 2.Qg3#
- 1...Se3
- 2.Sd3#
- 1...Sc4
- 2.Qd4#
- 1...Sb7
- 2.Qd4#
- 1...Sf7
- 2.Qd4#
- 1...Sc8
- 2.Qd4#
- 1...Se8
- 2.Qd4#
- 1...g4
- 2.Rxf1#
- 1...Sg3
- 1.Rg1!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- S(a);N_GUARD::QAB1(B)
- S(a);SBLOCK::S(C)
- S(a);N_GUARD::QAB1(B),XS(a)
- S(f);N_GUARD::QAR2(B)
- S(f);SBLOCK::S(C)
- P(e);SBLOCK::R(A)
- Tries
- Try
- K(E);S_FLIGHT
- Threat
- R(A)
- Vars
- S(a);CHECK,N_GUARD::QAB1(B),XS(a)
- S(a);N_GUARD::QAB1(B)
- S(a);SBLOCK::S(C)
- S(f);SBLOCK::S(C)
- Refutation
- P(h);CHECK
- Try
- B(D);
- Vars
- S(a);N_GUARD::QAB1(B),XS(a)
- S(a);N_GUARD::QAB1(B)
- S(a);SBLOCK::S(C)
- S(f);N_GUARD::QAR2(B)
- P(e);SBLOCK::R(A)
- Refutation
- S(f);
- Try
- B(D);
- Vars
- S(a);N_GUARD::QAB1(B),XS(a)
- S(f);SBLOCK::S(C)
- S(a);N_GUARD::QAB1(B)
- S(a);SBLOCK::S(C)
- S(f);N_GUARD::QAR2(B)
- P(e);SBLOCK::R(A)
- Refutation
- S(f);XB(D)
- Try
- B(D);
- Vars
- S(a);N_GUARD::QAB1(B),XS(a)
- S(f);SBLOCK::S(C)
- S(a);N_GUARD::QAB1(B)
- S(a);SBLOCK::S(C)
- S(f);N_GUARD::QAR2(B)
- P(e);SBLOCK::R(A)
- Refutation
- S(f);
- Try
- R(A);XP(e)
- Vars
- S(f);SBLOCK::S(C)
- S(a);N_GUARD::QAB1(B)
- S(a);SBLOCK::S(C)
- S(a);N_GUARD::QAB1(B),XS(a)
- S(f);N_GUARD::QAR2(B)
- Refutation
- P(g);XR(A)
- Try
- Q(B);
- Threat
- S(C)
- Vars
- S(a);N_GUARD::QAB1(B),XS(a)
- Refutation
- S(f);
- Try
- Q(B);CHECK
- Vars
- S(a);SBLOCK,XQ(B)::S(C)
- Refutation
- K(b);S_FLIGHT,XQ(B)
- Try
- Q(B);
- Threat
- S(C)
- Vars
- S(a);N_GUARD::QAB1(B),XS(a)
- Refutation
- K(b);S_FLIGHT
- Try
- Actual
- R(A);
- Vars
- S(a);N_GUARD::QAB1(B),XS(a)
- S(f);SBLOCK::S(C)
- S(a);N_GUARD::QAB1(B)
- S(a);SBLOCK::S(C)
- S(f);N_GUARD::QAR2(B)
- P(e);SBLOCK::R(A),XS(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).