MESON Chess Problem Database
Problem Display
PID: 259769 (1K2R3/7Q/2ppn1r1/RpPkNB2/5PPb/BP2P3/8/8 w - - 0 1)
Kupper, Josef
Schweizerische Schachzeitung, 2005
#2
12 + 7
SOLUTION
- SOUND
- Sets
- 1...Rxg4
- 2.Be4#
- 2.Bxe6#
- 1...Rg5
- 2.Be4#
- 2.Bxe6#
- 1...Rf6
- 2.Be4#
- 1...Rh6
- 2.Be4#
- 1...Rg7
- 2.Be4#
- 2.Bxe6#
- 1...Rg8
- 2.Be4#
- 2.Bxe6#
- 1...Be1
- 2.Qh1#
- 1...Bf2
- 2.Qh1#
- 1...Bg3
- 2.Qh1#
- 1...Bg5
- 2.Qh1#
- 1...Bf6
- 2.Qh1#
- 1...Be7
- 2.Qh1#
- 1...Bd8
- 2.Qh1#
- 1...Sd4
- 2.e4#
- 1...dxc5
- 2.Qd7#
- 1...dxe5
- 2.Qd7#
- 1...Rxg4
- Tries
- 1.Sd3?
- 1...Rxg4
- 2.Be4#
- 2.Bxe6#
- 1...Sxf4
- 2.Sxf4#
- 2.Be4#
- 1...Sxc5
- 2.Sb4#
- 1...dxc5
- 2.Qd7#
- 1...Rg5
- 2.Be4#
- 2.Bxe6#
- 1...Rf6
- 2.Be4#
- 1...Rh6
- 2.Be4#
- 1...Rg7
- 2.Be4#
- 2.Bxe6#
- 1...Rg8
- 2.Be4#
- 2.Bxe6#
- 1...Be1
- 2.Qh1#
- 1...Bf2
- 2.Qh1#
- 1...Bg3
- 2.Qh1#
- 1...Bg5
- 2.Qh1#
- 1...Bf6
- 2.Qh1#
- 1...Be7
- 2.Qh1#
- 1...Bd8
- 2.Qh1#
- 1...Sd4
- 2.Be4#
- 2.e4#
- 1...Sc7
- 2.Be4#
- 1...Sg7
- 2.Be4#
- 1...Sd8
- 2.Be4#
- 1...Sf8
- 2.Be4#
- 1...b4
- 2.Sxb4#
- 1...Sg5!
- 1...Rxg4
- 1.Sc4?
- threat
- 2.Sb6#
- 1...dxc5
- 2.Qd7#
- 1...Bd8
- 2.Qh1#
- 1...bxc4!
- threat
- 1.Sd7?
- threat
- 2.Sb6#
- 1...Bd8
- 2.Qh1#
- 1...dxc5!
- threat
- 1.Bxe6+?
- 1...Rxe6
- 2.Qd3#
- 1...Ke4!
- 1...Rxe6
- 1.Qxg6?
- threat
- 2.Be4#
- 2.Bxe6#
- 2.Qxe6#
- 1...Sxf4
- 2.Be4#
- 2.Qxd6#
- 1...dxc5
- 2.Qxe6#
- 1...Sg5
- 2.Qxd6#
- 1...Bf6
- 2.Be4#
- 2.Bxe6#
- 1...Sd4
- 2.Be4#
- 2.Qxd6#
- 2.e4#
- 1...Sc7
- 2.Be4#
- 2.Qxd6#
- 1...Sg7
- 2.Be4#
- 2.Qxd6#
- 1...Sd8
- 2.Be4#
- 2.Qxd6#
- 1...Sf8
- 2.Be4#
- 2.Qxd6#
- 1...Sxc5!
- threat
- 1.Qb7?
- threat
- 2.Qxc6#
- 1...dxe5
- 2.Qd7#
- 1...Sd4
- 2.e4#
- 1...Sd8!
- threat
- 1.Qd7?
- threat
- 2.Qxc6#
- 2.Qxd6#
- 1...Sxf4
- 2.Qxc6#
- 1...Sxc5
- 2.Qxc6#
- 1...Sg5
- 2.Qxc6#
- 1...Be7
- 2.Qxc6#
- 1...Sd4
- 2.e4#
- 1...Sc7
- 2.Qxc6#
- 1...Sg7
- 2.Qxc6#
- 1...Sf8
- 2.Qxc6#
- 1...Sd8!
- threat
- 1.Sd3?
- Keys
- 1.Sxc6!
- 1...Kxc6
- 2.Qb7#
- 1...Rxg4
- 2.Be4#
- 1...Sxf4
- 2.Be4#
- 1...Sxc5
- 2.Sb4#
- 1...dxc5
- 2.Qd7#
- 1...Sg5
- 2.Se7#
- 1...Rg5
- 2.Se7#
- 2.Be4#
- 1...Rf6
- 2.Se7#
- 2.Be4#
- 1...Rh6
- 2.Be4#
- 1...Rg7
- 2.Be4#
- 1...Rg8
- 2.Be4#
- 1...Be1
- 2.Se7#
- 2.Qh1#
- 1...Bf2
- 2.Se7#
- 2.Qh1#
- 1...Bg3
- 2.Se7#
- 2.Qh1#
- 1...Bg5
- 2.Qh1#
- 1...Bf6
- 2.Qh1#
- 1...Be7
- 2.Sxe7#
- 2.Qh1#
- 1...Bd8
- 2.Qh1#
- 1...Sd4
- 2.Be4#
- 1...Sc7
- 2.Be4#
- 1...Sg7
- 2.Be4#
- 1...Sd8
- 2.Be4#
- 1...Sf8
- 2.Be4#
- 1...b4
- 2.Sxb4#
- 1...Kxc6
- 1.Sxc6!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 1
- ADDED MATES = 12
- REMOVED MATES = 6
- Sets
- R(g);::B(I)
- B(a);OGATE::QAB(J)
- S(f);SBLOCK::P(C)
- P(e);OGATEB,XP(G)::QAR2(J)
- P(e);OGATEB,XS(H)::QAR2(J)
- Tries
- Try
- S(H);
- Vars
- S(f);SBLOCK,XP(G)::S(H)
- P(e);OGATEB,XP(G)::QAR2(J)
- R(g);::B(I)
- B(a);OGATE::QAB(J)
- S(f);::B(I)
- P(b);::S(H),XP(b)
- Refutation
- S(f);
- Try
- S(H);
- Threat
- S(H)
- Vars
- P(e);OGATEB,XP(G)::QAR2(J)
- B(a);OGATE::QAB(J)
- Refutation
- P(b);XS(H)
- Try
- S(H);
- Threat
- S(H)
- Vars
- B(a);OGATE::QAB(J)
- Refutation
- P(e);XP(G)
- Try
- B(I);CHECK,XS(f)
- Vars
- R(g);OGATE,XB(I)::QAR2(J)
- Refutation
- K(c);P_SPINR(g),S_FLIGHT
- Try
- Q(J);XR(g)
- Threat
- DUALS(3)
- Vars
- P(e);XP(G)::QAB1(J),XS(f)
- S(f);OGATE::QAR1(J),XP(e)
- Refutation
- S(f);XP(G)
- Try
- Q(J);P_PINP(d)
- Threat
- QAB1(J),XP(d)
- Vars
- P(e);OGATEB,XS(H)::QAR2(J)
- S(f);SBLOCK::P(C)
- Refutation
- S(f);
- Try
- Q(J);P_PINP(e)
- Threat
- DUALS(2)
- Vars
- S(f);XP(D)::QAB1(J),XP(d)
- S(f);XP(G)::QAB1(J),XP(d)
- S(f);::QAB1(J),XP(d)
- B(a);::QAB1(J),XP(d)
- S(f);SBLOCK::P(C)
- Refutation
- S(f);
- Try
- Actual
- S(H);XP(d)
- Vars
- K(c);OGATEB,S_FLIGHT,XS(H)::QAB1(J)
- R(g);XP(E)::B(I)
- S(f);XP(D)::B(I)
- S(f);SBLOCK,XP(G)::S(H)
- P(e);OGATEB,XP(G)::QAR2(J)
- S(f);S_CUTB(a)::S(H)
- R(g);::B(I)
- R(g);P_PINR(L)::B(I)
- B(a);OGATE::QAB(J)
- S(f);::B(I)
- P(b);::S(H),XP(b)
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).