MESON Chess Problem Database
Problem Display
PID: 70736 (2R1K2b/p3B2B/1p1N2p1/3kpP2/1RpNp3/3P1P2/2nPn3/1br1r1q1 w - - 0 1)
Overkamp, Petrus
L'Italia Scacchistica, 1949
#2
11 + 14
SOLUTION
- SOUND
- Sets
- 1...Qxd4
- 2.Bg8#
- 1...Scxd4
- 2.fxe4#
- 1...Sexd4
- 2.dxc4#
- 1...cxd3
- 2.Bg8#
- 2.fxe4#
- 1...c3
- 2.Bg8#
- 2.dxe4#
- 2.fxe4#
- 1...exd4
- 2.Rb5#
- 1...Qxd4
- Tries
- 1.Sb3?
- threat
- 2.Bg8#
- 2.dxc4#
- 2.dxe4#
- 2.fxe4#
- 1...Sxb4
- 2.Bg8#
- 2.fxe4#
- 1...cxb3
- 2.Bg8#
- 2.dxe4#
- 2.fxe4#
- 1...cxd3
- 2.Bg8#
- 2.fxe4#
- 1...exd3
- 2.Bg8#
- 1...exf3
- 2.Bg8#
- 2.dxc4#
- 1...Qe3
- 2.Bg8#
- 2.dxc4#
- 1...Qd4
- 2.Bg8#
- 1...Qc5
- 2.Bg8#
- 2.dxe4#
- 2.fxe4#
- 1...Qh1
- 2.Bg8#
- 2.Rb5#
- 2.dxc4#
- 2.dxe4#
- 1...Qg2
- 2.Bg8#
- 2.Rb5#
- 2.dxc4#
- 2.dxe4#
- 1...Qg4
- 2.Bg8#
- 2.Rb5#
- 2.dxc4#
- 1...Sa1
- 2.Bg8#
- 2.fxe4#
- 1...Sa3
- 2.Bg8#
- 2.fxe4#
- 1...Se3
- 2.Bg8#
- 2.Rb5#
- 2.fxe4#
- 1...Scd4
- 2.fxe4#
- 1...Sc3
- 2.Bg8#
- 2.dxc4#
- 1...Sg3
- 2.Bg8#
- 2.dxc4#
- 1...Sed4
- 2.dxc4#
- 1...Sf4
- 2.dxc4#
- 1...c3
- 2.Bg8#
- 2.dxe4#
- 2.fxe4#
- 1...e3
- 2.Bg8#
- 2.Rb5#
- 2.dxc4#
- 1...b5
- 2.Bg8#
- 2.dxe4#
- 2.fxe4#
- 1...gxf5!
- threat
- 1.S4b5?
- threat
- 2.Bg8#
- 2.dxc4#
- 2.dxe4#
- 2.fxe4#
- 1...Sxb4
- 2.Bg8#
- 2.fxe4#
- 1...cxd3
- 2.Bg8#
- 2.fxe4#
- 1...exd3
- 2.Bg8#
- 1...exf3
- 2.Bg8#
- 2.dxc4#
- 1...Qe3
- 2.Bg8#
- 2.dxc4#
- 1...Qd4
- 2.Bg8#
- 1...Qc5
- 2.Bg8#
- 2.dxe4#
- 2.fxe4#
- 1...Qh1
- 2.Bg8#
- 2.dxc4#
- 2.dxe4#
- 1...Qg2
- 2.Bg8#
- 2.dxc4#
- 2.dxe4#
- 1...Qg4
- 2.Bg8#
- 2.dxc4#
- 1...Ba2
- 2.Bg8#
- 2.dxe4#
- 2.fxe4#
- 1...Sa1
- 2.Bg8#
- 2.fxe4#
- 1...Sa3
- 2.Bg8#
- 2.fxe4#
- 1...Se3
- 2.Bg8#
- 2.fxe4#
- 1...Scd4
- 2.fxe4#
- 1...Sc3
- 2.Bg8#
- 2.dxc4#
- 1...Sg3
- 2.Bg8#
- 2.dxc4#
- 1...Sed4
- 2.Sc3#
- 2.dxc4#
- 1...Sf4
- 2.dxc4#
- 1...c3
- 2.Bg8#
- 2.dxe4#
- 2.fxe4#
- 1...e3
- 2.Bg8#
- 2.dxc4#
- 1...gxf5!
- threat
- 1.Sxc4?
- threat
- 2.Rd8#
- 1...Kxd4
- 2.Rd8#
- 1...Qxd4
- 2.Bg8#
- 1...Scxd4
- 2.fxe4#
- 1...exd4
- 2.Bg8#
- 2.Rb5#
- 2.dxe4#
- 2.fxe4#
- 1...Sexd4!
- threat
- 1.Sxe4?
- threat
- 2.Rd8#
- 1...Kxd4
- 2.Rd8#
- 1...Qxd4
- 2.Bg8#
- 1...Sexd4
- 2.Sc3#
- 2.dxc4#
- 1...exd4
- 2.Rb5#
- 1...Scxd4!
- threat
- 1.S6b5?
- threat
- 2.Bg8#
- 2.Rd8#
- 2.dxc4#
- 2.dxe4#
- 2.fxe4#
- 1...Qxd4
- 2.Bg8#
- 1...Sxb4
- 2.Bg8#
- 2.Rd8#
- 2.fxe4#
- 1...Scxd4
- 2.fxe4#
- 1...Sexd4
- 2.Sc3#
- 2.dxc4#
- 1...cxd3
- 2.Sc7#
- 2.Bg8#
- 2.Rd8#
- 1...exd3
- 2.Bg8#
- 2.Rd8#
- 1...exf3
- 2.Bg8#
- 2.Rd8#
- 1...gxf5
- 2.Rd8#
- 2.dxc4#
- 1...Qe3
- 2.Bg8#
- 2.Rd8#
- 2.dxc4#
- 1...Qh1
- 2.Bg8#
- 2.Rd8#
- 2.dxc4#
- 2.dxe4#
- 1...Qg2
- 2.Bg8#
- 2.Rd8#
- 2.dxc4#
- 2.dxe4#
- 1...Qg4
- 2.Bg8#
- 2.Rd8#
- 2.dxc4#
- 1...Ba2
- 2.Bg8#
- 2.Rd8#
- 2.dxe4#
- 2.fxe4#
- 1...Sa1
- 2.Bg8#
- 2.Rd8#
- 2.fxe4#
- 1...Sa3
- 2.Bg8#
- 2.Rd8#
- 2.fxe4#
- 1...Se3
- 2.Bg8#
- 2.Rd8#
- 2.fxe4#
- 1...Sc3
- 2.Bg8#
- 2.Rd8#
- 2.dxc4#
- 1...Sg3
- 2.Bg8#
- 2.Rd8#
- 2.dxc4#
- 1...Sf4
- 2.Rd8#
- 2.dxc4#
- 1...c3
- 2.Sc7#
- 2.Bg8#
- 2.Rd8#
- 2.dxe4#
- 2.fxe4#
- 1...e3
- 2.Bg8#
- 2.Rd8#
- 2.dxc4#
- 1...exd4!
- threat
- 1.Sf7?
- threat
- 2.Rd8#
- 1...Kxd4
- 2.Rd8#
- 1...Scxd4
- 2.fxe4#
- 1...Sexd4
- 2.dxc4#
- 1...exd4
- 2.Rb5#
- 2.dxc4#
- 2.dxe4#
- 2.fxe4#
- 1...Qxd4!
- threat
- 1.Rcxc4?
- threat
- 2.Bg8#
- 2.Rb5#
- 2.dxe4#
- 2.fxe4#
- 1...Qxd4
- 2.Bg8#
- 1...Sxb4
- 2.Bg8#
- 2.fxe4#
- 1...Scxd4
- 2.fxe4#
- 1...exd3
- 2.Bg8#
- 2.Rb5#
- 1...exf3
- 2.Bg8#
- 2.Rb5#
- 1...exd4
- 2.Rb5#
- 1...gxf5
- 2.Rb5#
- 1...Qe3
- 2.Bg8#
- 2.Rb5#
- 1...Qh1
- 2.Bg8#
- 2.Rb5#
- 2.dxe4#
- 1...Qg2
- 2.Bg8#
- 2.Rb5#
- 2.dxe4#
- 1...Qg4
- 2.Bg8#
- 2.Rb5#
- 1...Sa1
- 2.Bg8#
- 2.Rb5#
- 2.fxe4#
- 1...Sa3
- 2.Bg8#
- 2.fxe4#
- 1...Se3
- 2.Bg8#
- 2.Rb5#
- 2.fxe4#
- 1...Sc3
- 2.Bg8#
- 1...Sg3
- 2.Bg8#
- 2.Rb5#
- 1...Sf4
- 2.Rb5#
- 1...e3
- 2.Bg8#
- 2.Rb5#
- 1...b5
- 2.Bg8#
- 2.Rxb5#
- 2.dxe4#
- 2.fxe4#
- 1...a6
- 2.Bg8#
- 2.dxe4#
- 2.fxe4#
- 1...Sexd4!
- threat
- 1.Sb3?
- Keys
- 1.Sb7!
- threat
- 2.Rd8#
- 1...Kxd4
- 2.Rd8#
- 1...Qxd4
- 2.Bg8#
- 1...Scxd4
- 2.fxe4#
- 1...Sexd4
- 2.dxc4#
- 1...exd4
- 2.Rb5#
- threat
- 1.Sb7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- Q(d);SBLOCK,XS(E)::B(I)
- S(e);SBLOCK,XS(E)::P(C),XP(h)
- S(f);SBLOCK,XS(E)::P(B),XP(g)
- P(j);SBLOCK,XS(E)::R(D)
- Tries
- Try
- S(E);
- Threat
- DUALS(4)
- Vars
- P(h);XP(B)::B(I)
- Q(d);::B(I)
- S(e);::P(C),XP(h)
- S(f);::P(B),XP(g)
- Refutation
- P(l);XP(F)
- Try
- S(E);
- Threat
- DUALS(4)
- Vars
- P(h);XP(B)::B(I)
- Q(d);::B(I)
- S(e);::P(C),XP(h)
- S(f);::P(B),XP(g)
- Refutation
- P(l);XP(F)
- Try
- S(G);XP(g)
- Threat
- R(J)
- Vars
- K(i);P-FLIGHT,XS(E)::R(J)
- Q(d);SBLOCK,XS(E)::B(I)
- S(e);SBLOCK,XS(E)::P(C),XP(h)
- Refutation
- S(f);XS(E)
- Try
- S(G);XP(h)
- Threat
- R(J)
- Vars
- K(i);P-FLIGHT,P_SPINP(g),XS(E)::R(J)
- Q(d);SBLOCK,XS(E)::B(I)
- P(j);SBLOCK,XS(E)::R(D)
- Refutation
- S(e);XS(E)
- Try
- S(G);
- Threat
- DUALS(5)
- Vars
- Q(d);XS(E)::B(I)
- S(e);XS(E)::P(C),XP(h)
- Refutation
- P(j);XS(E)
- Try
- S(G);
- Threat
- R(J)
- Vars
- K(i);P-FLIGHT,P_SPINP(g),XS(E)::R(J)
- S(e);SBLOCK,XS(E)::P(C),XP(h)
- S(f);SBLOCK,XS(E)::P(B),XP(g)
- Refutation
- Q(d);XS(E)
- Try
- R(J);XP(g)
- Threat
- DUALS(4)
- Vars
- Q(d);XS(E)::B(I)
- S(e);XS(E)::P(C),XP(h)
- P(j);XS(E)::R(D)
- P(l);XP(F)::R(D)
- S(f);::B(I)
- S(f);::R(D)
- Refutation
- S(f);XS(E)
- Try
- Actual
- S(G);
- Threat
- R(J)
- Vars
- K(i);P-FLIGHT,P_SPINP(g),XS(E)::R(J)
- Q(d);SBLOCK,XS(E)::B(I)
- S(e);SBLOCK,XS(E)::P(C),XP(h)
- S(f);SBLOCK,XS(E)::P(B),XP(g)
- P(j);SBLOCK,XS(E)::R(D)
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).