MESON Chess Problem Database
Problem Display
PID: 149377 (1nKR1BN1/p1p3n1/1pk5/PR6/2P1N1Q1/q3p3/7r/3B4 w - - 0 1)
Cramatte, Jacques
Schweizerische Schachzeitung, 2010
#2
10 + 9
| 15148 | Sadier Collection | 2014 |
SOLUTION
- SOUND
- Sets
- 1...Qc1
- 2.Se7#
- 1...Qb2
- 2.Se7#
- 1...Qe7
- 2.Sxe7#
- 1...Qa1
- 2.Se7#
- 1...Qa2
- 2.Se7#
- 1...Qb3
- 2.Se7#
- 1...Qc3
- 2.Se7#
- 1...Qd3
- 2.Se7#
- 1...Qa4
- 2.Se7#
- 1...Qxa5
- 2.Se7#
- 1...Sa6
- 2.Qd7#
- 1...Sd7
- 2.Qxd7#
- 1...Qc1
- Tries
- 1.Sc5?
- threat
- 2.Se7#
- 2.Bf3#
- 2.Qf3#
- 2.Qe4#
- 1...Qd3
- 2.Se7#
- 1...Rd2
- 2.Se7#
- 1...Re2
- 2.Se7#
- 2.Qf3#
- 2.Qe4#
- 1...Rf2
- 2.Se7#
- 2.Qe4#
- 1...Rh3
- 2.Se7#
- 2.Qe4#
- 1...Rh4
- 2.Se7#
- 2.Bf3#
- 1...Rh5
- 2.Se7#
- 1...Sf5
- 2.Bf3#
- 2.Qf3#
- 2.Qe4#
- 1...Sd7
- 2.Bf3#
- 2.Qf3#
- 2.Qxd7#
- 2.Qe4#
- 1...e2
- 2.Se7#
- 2.Qe4#
- 1...Qxc5!
- threat
- 1.Sd6?
- threat
- 2.Se7#
- 2.Bf3#
- 2.Qf3#
- 2.Qe4#
- 1...cxd6
- 2.Se7#
- 1...Qc5
- 2.Se7#
- 1...Qd3
- 2.Se7#
- 1...Rd2
- 2.Se7#
- 1...Re2
- 2.Se7#
- 2.Qf3#
- 2.Qe4#
- 1...Rf2
- 2.Se7#
- 2.Qe4#
- 1...Rh3
- 2.Se7#
- 2.Qe4#
- 1...Rh4
- 2.Se7#
- 2.Bf3#
- 1...Rh5
- 2.Se7#
- 1...Sf5
- 2.Bf3#
- 2.Qf3#
- 2.Qe4#
- 1...Sd7
- 2.Bf3#
- 2.Qf3#
- 2.Qxd7#
- 2.Qe4#
- 1...e2
- 2.Se7#
- 2.Qe4#
- 1...Qxd6!
- threat
- 1.Ba4?
- threat
- 2.Rc5#
- 2.Rxb6#
- 1...Qxa4
- 2.Se7#
- 1...Qc5
- 2.Rxc5#
- 2.Rxb6#
- 1...bxa5!
- threat
- 1.Rc5+?
- 1...bxc5
- 2.Se7#
- 1...Qxc5!
- 1...bxc5
- 1.Rd6+?
- 1...cxd6
- 2.Se7#
- 1...Qxd6!
- 1...cxd6
- 1.Qf3?
- threat
- 2.Sd2#
- 2.Sf2#
- 2.Sc3#
- 2.Sg3#
- 2.Sc5#
- 2.Sg5#
- 2.Sd6#
- 2.Sef6#
- 1...Qxf8
- 2.Sef6#
- 1...Qd6
- 2.Sxd6#
- 1...Qc5
- 2.Sxc5#
- 1...Qe7
- 2.Sxe7#
- 1...Qc3
- 2.Sd2#
- 2.Sf2#
- 2.Sxc3#
- 2.Sg3#
- 2.Sc5#
- 2.Sg5#
- 2.Sd6#
- 2.Sef6#
- 2.Se7#
- 1...Qd3
- 2.Se7#
- 1...Rd2
- 2.Sxd2#
- 1...Rf2
- 2.Sxf2#
- 1...Rh3
- 2.Sg3#
- 1...Rh5
- 2.Sg5#
- 1...e2
- 2.Sc3#
- 1...Rh4!
- threat
- 1.Qe6+?
- 1...Qd6
- 2.Se7#
- 1...Sxe6!
- 1...Qd6
- 1.Qg6+?
- 1...Qd6
- 2.Se7#
- 1...Se6!
- 1...Qd6
- 1.Sc5?
- Keys
- 1.Bf3!
- threat
- 2.Sd2#
- 2.Sf2#
- 2.Sc3#
- 2.Sg3#
- 2.Sc5#
- 2.Sg5#
- 2.Sd6#
- 2.Sef6#
- 1...Qxf8
- 2.Sef6#
- 1...Qd6
- 2.Sxd6#
- 1...Qc5
- 2.Sxc5#
- 1...Qe7
- 2.Sxe7#
- 1...Qc3
- 2.Sd2#
- 2.Sf2#
- 2.Sxc3#
- 2.Sg3#
- 2.Sc5#
- 2.Sg5#
- 2.Sd6#
- 2.Sef6#
- 2.Se7#
- 1...Qd3
- 2.Se7#
- 1...Rd2
- 2.Sxd2#
- 1...Rf2
- 2.Sxf2#
- 1...Rh3
- 2.Sg3#
- 1...Rh5
- 2.Sg5#
- 1...e2
- 2.Sc3#
- threat
- 1.Bf3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 8
- REMOVED MATES = 10
- Sets
- Q(b);N_GUARD::S(J)
- Q(b);N_GUARD::S(J),XQ(b)
- Q(b);N_GUARD,XP(E)::S(J)
- S(i);N_GUARD::QAB1(D)
- S(i);N_GUARD::QAB1(D),XS(i)
- Tries
- Try
- S(C);
- Threat
- DUALS(4)
- Vars
- Q(b);::S(J)
- R(a);::S(J)
- Refutation
- Q(b);XS(C)
- Try
- S(C);
- Threat
- DUALS(4)
- Vars
- P(g);XS(C)::S(J)
- Q(b);::S(J)
- R(a);::S(J)
- Refutation
- Q(b);XS(C)
- Try
- B(A);
- Threat
- DUALS(2)
- Vars
- Q(b);N_GUARD,XB(A)::S(J)
- Refutation
- P(d);XP(E)
- Try
- R(F);CHECK
- Vars
- P(d);XR(F)::S(J)
- Refutation
- Q(b);XR(F)
- Try
- R(H);CHECK
- Vars
- P(g);XR(H)::S(J)
- Refutation
- Q(b);XR(H)
- Try
- Q(D);
- Threat
- DUALS(8)
- Vars
- Q(b);P_PINR(H),XB(I)::QAB(D)+S(C)
- Q(b);::QAB(D)+S(C),XQ(b)
- Q(b);N_GUARD::S(J),XQ(b)
- Q(b);N_GUARD::S(J)
- R(a);::QAB(D)+S(C),XR(a)
- R(a);::QAB(D)+S(C)
- P(c);::QAB(D)+S(C)
- Refutation
- R(a);
- Try
- Q(D);CHECK
- Vars
- Q(b);P_SPINQ(b)::S(J)
- Refutation
- S(h);XQ(D)
- Try
- Q(D);CHECK
- Vars
- Q(b);P_SPINQ(b)::S(J)
- Refutation
- S(h);P_SPINS(h)
- Try
- Actual
- B(A);
- Threat
- DUALS(8)
- Vars
- Q(b);P_PINR(H),XB(I)::B(A)+S(C)
- Q(b);::B(A)+S(C),XQ(b)
- Q(b);N_GUARD::S(J),XQ(b)
- Q(b);N_GUARD::S(J)
- R(a);::B(A)+S(C),XR(a)
- R(a);::B(A)+S(C)
- P(c);::B(A)+S(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).