MESON Chess Problem Database
Problem Display
PID: 52898 (N1n5/b1Pp4/Rppk1p2/3p1P2/1PBN3p/BP1RQ1pP/3PP1K1/8 w - - 0 1)
Pelle, Charles
6th Place, Source?, 1938
#2
15 + 10
| 785 | Het Belgisch Schaakbord (L'Echiquier Belge) | 1949 |
SOLUTION
- SOUND
- Sets
- 1...Bb8
- 2.cxb8Q#
- 2.cxb8B#
- 1...Se7
- 2.Qf4#
- 1...dxc4
- 2.Sb5#
- 1...b5
- 2.Sxb5#
- 1...c5
- 2.bxc5#
- 1...Bb8
- Tries
- 1.Kf1?
- 1...dxc4
- 2.Sb5#
- 1...Bb8
- 2.cxb8Q#
- 2.cxb8B#
- 1...Se7
- 2.Qf4#
- 1...b5
- 2.Sxb5#
- 1...c5
- 2.bxc5#
- 1...g2+!
- 1...dxc4
- 1.Kg1?
- 1...dxc4
- 2.Sb5#
- 1...Bb8
- 2.cxb8Q#
- 2.cxb8B#
- 1...Se7
- 2.Qf4#
- 1...b5
- 2.Sxb5#
- 1...c5
- 2.bxc5#
- 1...g2!
- 1...dxc4
- 1.Kh1?
- 1...dxc4
- 2.Sb5#
- 1...Bb8
- 2.cxb8Q#
- 2.cxb8B#
- 1...Se7
- 2.Qf4#
- 1...b5
- 2.Sxb5#
- 1...c5
- 2.bxc5#
- 1...g2+!
- 1...dxc4
- 1.Kf3?
- 1...dxc4
- 2.Sb5#
- 1...Bb8
- 2.cxb8Q#
- 2.cxb8B#
- 1...Se7
- 2.Qf4#
- 1...b5
- 2.Sxb5#
- 1...c5
- 2.bxc5#
- 1...g2!
- 1...dxc4
- 1.Sc2?
- 1...Bb8
- 2.cxb8Q#
- 2.cxb8B#
- 1...Se7
- 2.Qf4#
- 1...d4
- 2.Rxd4#
- 1...b5
- 2.Rxd5#
- 1...c5!
- 1...Bb8
- 1.Sxc6?
- threat
- 2.b5#
- 1...dxc6
- 2.Qe6#
- 1...b5
- 2.Rxd5#
- 2.Qf4#
- 1...Kxc6!
- threat
- 1.Bc1?
- 1...dxc4
- 2.Sb5#
- 1...Bb8
- 2.cxb8Q#
- 2.cxb8B#
- 1...Se7
- 2.Qf4#
- 1...b5
- 2.Sxb5#
- 1...c5!
- 1...dxc4
- 1.Bb2?
- 1...dxc4
- 2.Sb5#
- 1...Bb8
- 2.cxb8Q#
- 2.cxb8B#
- 1...Se7
- 2.Qf4#
- 1...b5
- 2.Sxb5#
- 1...c5!
- 1...dxc4
- 1.Bb5?
- 1...Bb8
- 2.cxb8Q#
- 2.cxb8B#
- 1...Se7
- 2.Qf4#
- 1...c5
- 2.bxc5#
- 1...cxb5!
- 1...Bb8
- 1.Rc3?
- 1...Bb8
- 2.cxb8Q#
- 2.cxb8B#
- 1...Se7
- 2.Qf4#
- 1...b5
- 2.Sxb5#
- 1...c5
- 2.bxc5#
- 1...dxc4!
- 1...Bb8
- 1.Qe4?
- 1...dxc4
- 2.Sb5#
- 1...c5
- 2.bxc5#
- 1...Bb8
- 2.cxb8Q#
- 2.cxb8B#
- 1...Se7
- 2.Qf4#
- 1...b5
- 2.Sxb5#
- 1...dxe4!
- 1...dxc4
- 1.Qe8?
- 1...dxc4
- 2.Sb5#
- 1...c5
- 2.bxc5#
- 1...Bb8
- 2.cxb8Q#
- 2.cxb8B#
- 1...b5
- 2.Sxb5#
- 1...Se7!
- 1...dxc4
- 1.Kf1?
- Keys
- 1.Sf3!
- 1...c5
- 2.Qxc5#
- 1...Bb8
- 2.cxb8Q#
- 2.cxb8B#
- 1...Se7
- 2.Qf4#
- 1...d4
- 2.Rxd4#
- 1...b5
- 2.Rxd5#
- 1...c5
- 1.Sf3!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 2
- ADDED MATES = 1
- REMOVED MATES = 1
- Sets
- B(h);OGATE::PXB(h)=Q
- S(j);SBLOCK::QAB(G)
- P(c);XB(J)::R(F)+S(K),DCHECK
- P(d);P_SPINP(e)::S(K),XP(d)
- P(e);OGATE,P_SPINP(d)::P(I),XP(e)
- Tries
- Try
- K(C);S_FLIGHT
- Vars
- P(c);XB(J)::R(F)+S(K),DCHECK
- B(h);OGATE::PXB(h)=Q
- S(j);SBLOCK::QAB(G)
- P(d);P_SPINP(e)::S(K),XP(d)
- P(e);OGATE,P_SPINP(d)::P(I),XP(e)
- Refutation
- P(a);CHECK
- Try
- K(C);P-FLIGHT
- Vars
- P(c);XB(J)::R(F)+S(K),DCHECK
- B(h);OGATE::PXB(h)=Q
- S(j);SBLOCK::QAB(G)
- P(d);P_SPINP(e)::S(K),XP(d)
- P(e);OGATE,P_SPINP(d)::P(I),XP(e)
- Refutation
- P(a);
- Try
- K(C);S_FLIGHT
- Vars
- P(c);XB(J)::R(F)+S(K),DCHECK
- B(h);OGATE::PXB(h)=Q
- S(j);SBLOCK::QAB(G)
- P(d);P_SPINP(e)::S(K),XP(d)
- P(e);OGATE,P_SPINP(d)::P(I),XP(e)
- Refutation
- P(a);CHECK
- Try
- K(C);S_FLIGHT
- Vars
- P(c);XB(J)::R(F)+S(K),DCHECK
- B(h);OGATE::PXB(h)=Q
- S(j);SBLOCK::QAB(G)
- P(d);P_SPINP(e)::S(K),XP(d)
- P(e);OGATE,P_SPINP(d)::P(I),XP(e)
- Refutation
- P(a);
- Try
- S(K);P_PINP(c)
- Vars
- B(h);OGATE::PXB(h)=Q
- S(j);SBLOCK::QAB(G)
- P(c);OGATEB::R(F),XP(c)
- P(d);S_CUTP(e)::R1(F),XP(c)
- Refutation
- P(e);
- Try
- S(K);P_PINP(c),XP(e)
- Threat
- B(D)+P(I)
- Vars
- P(i);N_GUARD,SBLOCK,XS(K)::QAR1(G)
- Refutation
- K(f);N_SPINP(c),P-FLIGHT,P_SPINP(d),XS(K)
- Try
- B(D);
- Vars
- P(c);XB(J)::R(F)+S(K),DCHECK
- B(h);OGATE::PXB(h)=Q
- S(j);SBLOCK::QAB(G)
- P(d);P_SPINP(e)::S(K),XP(d)
- Refutation
- P(e);P_SPINP(d)
- Try
- B(D);
- Vars
- P(c);XB(J)::R(F)+S(K),DCHECK
- B(h);OGATE::PXB(h)=Q
- S(j);SBLOCK::QAB(G)
- P(d);P_SPINP(e)::S(K),XP(d)
- Refutation
- P(e);P_SPINP(d)
- Try
- B(J);
- Vars
- B(h);OGATE::PXB(h)=Q
- S(j);SBLOCK::QAB(G)
- P(e);OGATE,P_SPINP(d)::P(I),XP(e)
- Refutation
- P(e);P_SPINP(d),XB(J)
- Try
- R(F);
- Vars
- B(h);OGATE::PXB(h)=Q
- S(j);SBLOCK::QAB(G)
- P(d);P_SPINP(e)::S(K),XP(d)
- P(e);OGATE,P_SPINP(d)::P(I),XP(e)
- Refutation
- P(c);XB(J)
- Try
- Q(G);
- Vars
- P(c);XB(J)::R(F)+S(K),DCHECK
- P(e);OGATE,P_SPINP(d)::P(I),XP(e)
- B(h);OGATE::PXB(h)=Q
- S(j);SBLOCK::QAB(G)
- P(d);P_SPINP(e)::S(K),XP(d)
- Refutation
- P(c);XQ(G)
- Try
- Q(G);
- Vars
- P(c);XB(J)::R(F)+S(K),DCHECK
- P(e);OGATE,P_SPINP(d)::P(I),XP(e)
- B(h);OGATE::PXB(h)=Q
- P(d);P_SPINP(e)::S(K),XP(d)
- Refutation
- S(j);
- Try
- Actual
- S(K);P_PINP(c)
- Vars
- P(e);S_CUTP(d)::QAB1(G),XP(e)
- B(h);OGATE::PXB(h)=Q
- S(j);SBLOCK::QAB(G)
- P(c);OGATEB::R(F),XP(c)
- P(d);S_CUTP(e)::R1(F),XP(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).