MESON Chess Problem Database
Problem Display
PID: 182450 (4r3/6Q1/3n1RK1/Pnk1b1NR/PN2p3/BPP5/8/1b5B w - - 0 1)
Pineau, Arthur
Bulletin Ouvrier des Echecs, 1953
#2
12 + 7
SOLUTION
- SOUND
- Sets
- 1...Re6
- 2.Sxe6#
- 1...Ra8
- 2.Se6#
- 1...Rb8
- 2.Se6#
- 1...Rc8
- 2.Se6#
- 1...Rd8
- 2.Se6#
- 1...Rf8
- 2.Se6#
- 1...Rg8
- 2.Se6#
- 1...Rh8
- 2.Se6#
- 1...Bh2
- 2.Sxe4#
- 2.Se6#
- 1...Bxc3
- 2.Se6#
- 1...Bg3
- 2.Sxe4#
- 2.Se6#
- 1...Bd4
- 2.Sxe4#
- 2.Se6#
- 1...Bf4
- 2.Sxe4#
- 2.Se6#
- 1...Bxf6
- 2.Sxe4#
- 2.Se6#
- 1...Sxa3
- 2.Qa7#
- 2.Qc7#
- 1...Sxc3
- 2.Qa7#
- 1...Sd4
- 2.Qa7#
- 1...Sa7
- 2.Qxa7#
- 1...Sc7
- 2.Qxc7#
- 1...Sc4
- 2.Rc6#
- 1...Sf5
- 2.Rc6#
- 1...Sb7
- 2.Rc6#
- 1...Sf7
- 2.Rc6#
- 1...Sc8
- 2.Rc6#
- 1...e3+
- 2.Sd3#
- 1...Re6
- Tries
- 1.Sd3+?
- 1...Kc6
- 2.Bxe4#
- 1...Kd5!
- 1...Kc6
- 1.Sxe4+?
- 1...Sxe4
- 2.Rc6#
- 1...Bxe4+!
- 1...Sxe4
- 1.Bxe4?
- threat
- 2.Sd3#
- 2.Sa6#
- 1...Bxc3
- 2.Se6#
- 1...Sxa3
- 2.Sa6#
- 2.Qa7#
- 2.Qc7#
- 1...Sxc3
- 2.Sc2#
- 2.Sc6#
- 2.Qa7#
- 1...Sxe4
- 2.Rc6#
- 1...Bd3
- 2.Sxd3#
- 2.Sa6#
- 1...Bxe4+!
- threat
- 1.Qb7?
- threat
- 2.Sd3#
- 2.Sa6#
- 2.Qd5#
- 2.Qc6#
- 2.Qb6#
- 1...e3+
- 2.Sd3#
- 1...Bxc3
- 2.Se6#
- 2.Qd5#
- 2.Qb6#
- 1...Sxa3
- 2.Sa6#
- 2.Qd5#
- 2.Qc6#
- 2.Qb6#
- 2.Qa7#
- 2.Qc7#
- 1...Sxc3
- 2.Sc2#
- 2.Qb6#
- 2.Qa7#
- 1...Sxb7
- 2.Rc6#
- 1...Rb8
- 2.Sd3#
- 2.Sa6#
- 2.Se6#
- 2.Qd5#
- 2.Qc6#
- 1...Rc8
- 2.Sd3#
- 2.Sa6#
- 2.Se6#
- 2.Qd5#
- 2.Qb6#
- 1...Bd3
- 2.Sxd3#
- 2.Sa6#
- 2.Qd5#
- 2.Qc6#
- 2.Qb6#
- 1...Sd4
- 2.Sa2#
- 2.Sc2#
- 2.Sd3#
- 2.Sd5#
- 2.Sa6#
- 2.Qd5#
- 2.Qb6#
- 2.Qa7#
- 1...Sa7
- 2.Sa2#
- 2.Sc2#
- 2.Sd3#
- 2.Sd5#
- 2.Sa6#
- 2.Qd5#
- 2.Qb6#
- 2.Qxa7#
- 1...Sc7
- 2.Sa2#
- 2.Sc2#
- 2.Sd3#
- 2.Sd5#
- 2.Sa6#
- 2.Qc6#
- 2.Qb6#
- 2.Qa7#
- 2.Qxc7#
- 1...Sc4
- 2.Sd3#
- 2.Sa6#
- 2.Rc6#
- 2.Qd5#
- 2.Qc6#
- 2.Qxb5#
- 1...Sc8
- 2.Sd3#
- 2.Sa6#
- 2.Rc6#
- 2.Qd5#
- 2.Qc6#
- 2.Qxb5#
- 1...Rg8+!
- threat
- 1.Qd7?
- threat
- 2.Qc6#
- 1...e3+
- 2.Sd3#
- 1...Bxc3
- 2.Se6#
- 1...Sxc3
- 2.Qa7#
- 1...Rc8
- 2.Se6#
- 1...Sd4
- 2.Qa7#
- 1...Sa7
- 2.Qxa7#
- 1...Rg8+!
- threat
- 1.Qf7?
- threat
- 2.Qd5#
- 1...e3+
- 2.Sd3#
- 1...Sxc3
- 2.Qa7#
- 1...Sxf7
- 2.Rc6#
- 1...Re6
- 2.Sxe6#
- 1...Sc7
- 2.Qxc7#
- 1...Rg8+!
- threat
- 1.Sd3+?
- Keys
- 1.Re6!
- threat
- 2.Qxe5#
- 1...Rxe6+
- 2.Sxe6#
- 1...e3+
- 2.Sd3#
- 1...Bxc3
- 2.Sxe4#
- 1...Bxg7
- 2.Sxe4#
- 1...Sxc3
- 2.Qa7#
- 1...Rg8
- 2.Rxe5#
- 1...Bh2
- 2.Sxe4#
- 1...Bg3
- 2.Sxe4#
- 1...Bd4
- 2.Sxe4#
- 1...Bf4
- 2.Sxe4#
- 1...Bf6
- 2.Sxe4#
- 1...Sc7
- 2.Qxc7#
- 1...Sc4
- 2.Rc6#
- 1...Sf7
- 2.Rc6#
- threat
- 1.Re6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 6
- REMOVED MATES = 11
- Sets
- R(g);N_GUARD,P_PINR(J)::S(H),XR(g)
- R(g);N_GUARD::S(H)
- R(g);N_GUARD,P_PINQ(L)::S(H)
- B(e);XP(D)::R(I)+S(H),DCHECK
- S(c);N_GUARD,XP(D)::QAB(L)
- S(c);N_GUARD::QAB(L)
- S(c);N_GUARD::QAB(L),XS(c)
- S(c);N_GUARD::QAR2(L),XS(c)
- S(f);OGATE::R1(J)
- P(b);CHECK::B(B)+S(F),DCHECK
- Tries
- Try
- S(F);CHECK
- Vars
- K(d);P-FLIGHT,P_SPINP(b),P_SPINS(f)::B(A),XP(b)
- Refutation
- K(d);P-FLIGHT,P_SPINP(b)
- Try
- S(H);CHECK,P_PINB(e),P_SPINS(H),XP(b)
- Vars
- S(f);OGATE,XS(H)::R1(J)
- Refutation
- B(a);CHECK,XS(H)
- Try
- B(A);P_SPINB(A),XP(b)
- Threat
- DUALS(2)
- Vars
- B(e);XP(D)::R(I)+S(H),DCHECK
- S(f);OGATE,XB(A)::R1(J)
- Refutation
- B(a);CHECK,XB(A)
- Try
- Q(L);
- Threat
- DUALS(5)
- Vars
- P(b);CHECK::B(B)+S(F),DCHECK
- S(f);OGATE,XQ(L)::R1(J)
- Refutation
- R(g);CHECK
- Try
- Q(L);
- Threat
- QAR1(L)
- Vars
- P(b);CHECK::B(B)+S(F),DCHECK
- B(e);XP(D)::R(I)+S(H),DCHECK
- S(c);N_GUARD,XP(D)::QAB(L)
- R(g);N_GUARD::S(H)
- S(c);N_GUARD::QAB(L)
- S(c);N_GUARD::QAB(L),XS(c)
- Refutation
- R(g);CHECK
- Try
- Q(L);
- Threat
- QAR1(L)
- Vars
- P(b);CHECK::B(B)+S(F),DCHECK
- S(c);N_GUARD,XP(D)::QAB(L)
- S(f);OGATE,XQ(L)::R1(J)
- R(g);N_GUARD,P_PINR(J)::S(H),XR(g)
- S(c);N_GUARD::QAR2(L),XS(c)
- Refutation
- R(g);CHECK
- Try
- Actual
- R(J);
- Threat
- QAR2(L),XB(e)
- Vars
- R(g);CHECK,XR(J)::S(H),XR(g)
- P(b);CHECK::B(B)+S(F),DCHECK
- B(e);XP(D)::R(I)+S(H),DCHECK,XP(b)
- B(e);XQ(L)::R(I)+S(H),DCHECK,XP(b)
- S(c);N_GUARD,XP(D)::QAB(L)
- R(g);N_GUARD,P_PINQ(L)::R(J),XB(e)
- B(e);::R(I)+S(H),DCHECK,XP(b)
- S(c);N_GUARD::QAR2(L),XS(c)
- S(f);OGATE::R1(J)
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).