MESON Chess Problem Database
Problem Display
PID: 79244 (3N3B/nP1RPbq1/2B1p2r/3NkPPp/2Q4P/1KP1pr2/8/8 w - - 0 1)
Bukne, Roald
1st Prize, Problemisten 03. TT (A), 1945-1946
#2
13 + 9
SOLUTION
- SOUND
- Sets
- 1...Rg3
- 2.Qf4#
- 1...Rh3
- 2.Qf4#
- 1...Rf4
- 2.Qxf4#
- 1...Rxf5
- 2.Qd4#
- 2.b8Q#
- 2.b8B#
- 1...exf5
- 2.Qd4#
- 1...Rg3
- Tries
- 1.Sxe3?
- threat
- 2.Sxf7#
- 2.Qd4#
- 2.Qe4#
- 2.b8Q#
- 2.b8B#
- 1...Qxh8
- 2.Sxf7#
- 2.Qd4#
- 2.Qe4#
- 2.b8Q#
- 2.b8B#
- 1...Rxf5
- 2.Qd4#
- 2.Qe4#
- 2.b8Q#
- 2.b8B#
- 1...Rxh8
- 2.Qd4#
- 2.Qe4#
- 2.b8Q#
- 2.b8B#
- 1...Sxc6
- 2.Sxc6#
- 2.Sxf7#
- 1...exf5
- 2.Sxf7#
- 1...Qf6
- 2.Sxf7#
- 2.Qd4#
- 2.Qe4#
- 2.b8Q#
- 2.b8B#
- 1...Rf1
- 2.Sxf7#
- 2.Qd4#
- 2.Qe4#
- 2.b8Q#
- 2.b8B#
- 1...Rf2
- 2.Sxf7#
- 2.Qd4#
- 2.Qe4#
- 2.b8Q#
- 2.b8B#
- 1...Rg3
- 2.Sxf7#
- 2.Qd4#
- 2.Qe4#
- 2.b8Q#
- 2.b8B#
- 1...Rh3
- 2.Sxf7#
- 2.Qd4#
- 2.Qe4#
- 2.b8Q#
- 2.b8B#
- 1...Rf6
- 2.Qd4#
- 2.Qe4#
- 2.b8Q#
- 2.b8B#
- 1...Rg6
- 2.Sxf7#
- 2.Qd4#
- 2.Qe4#
- 2.b8Q#
- 2.b8B#
- 1...Rh7
- 2.Sxf7#
- 2.Qd4#
- 2.Qe4#
- 2.b8Q#
- 2.b8B#
- 1...Bg6
- 2.Bxg7#
- 2.Qd4#
- 2.Qe4#
- 2.b8Q#
- 2.b8B#
- 1...Be8
- 2.Qd4#
- 2.Qe4#
- 2.b8Q#
- 2.b8B#
- 1...Bg8
- 2.Qd4#
- 2.Qe4#
- 2.b8Q#
- 2.b8B#
- 1...Sb5
- 2.Sxf7#
- 2.Qe4#
- 1...Sc8
- 2.Sxf7#
- 2.Qd4#
- 2.Qe4#
- 1...Rxe3!
- threat
- 1.Sb4?
- threat
- 2.Qe4#
- 1...Kxf5
- 2.Qe4#
- 1...exf5
- 2.Sd3#
- 2.Sxf7#
- 1...Rf4
- 2.Qc5#
- 1...Sxc6!
- threat
- 1.Sb6?
- threat
- 2.Qe4#
- 1...Kxf5
- 2.Qe4#
- 1...exf5
- 2.Sxf7#
- 1...Rf4
- 2.Qc5#
- 1...Sxc6!
- threat
- 1.Sc7?
- threat
- 2.Qe4#
- 1...Kxf5
- 2.Qe4#
- 1...exf5
- 2.Sxf7#
- 1...Rf4
- 2.Qc5#
- 1...Sxc6!
- threat
- 1.Qd3?
- threat
- 2.Sxf7#
- 2.b8Q#
- 2.b8B#
- 1...Qxh8
- 2.Sxf7#
- 2.b8Q#
- 2.b8B#
- 1...Rxf5
- 2.Qxe3#
- 2.Qd4#
- 2.b8Q#
- 2.b8B#
- 1...Rxh8
- 2.b8Q#
- 2.b8B#
- 1...Sxc6
- 2.Sxc6#
- 2.Sxf7#
- 1...exf5
- 2.Qd4#
- 1...Qf6
- 2.Sxf7#
- 2.b8Q#
- 2.b8B#
- 1...Rf1
- 2.Sxf7#
- 2.b8Q#
- 2.b8B#
- 1...Rf2
- 2.Sxf7#
- 2.b8Q#
- 2.b8B#
- 1...Rg3
- 2.Sxf7#
- 2.b8Q#
- 2.b8B#
- 1...Rh3
- 2.Sxf7#
- 2.b8Q#
- 2.b8B#
- 1...Rf4
- 2.Sxf7#
- 2.b8Q#
- 2.b8B#
- 1...Rf6
- 2.b8Q#
- 2.b8B#
- 1...Rg6
- 2.Sxf7#
- 2.b8Q#
- 2.b8B#
- 1...Rh7
- 2.Sxf7#
- 2.b8Q#
- 2.b8B#
- 1...Bg6
- 2.Bxg7#
- 2.b8Q#
- 2.b8B#
- 1...Be8
- 2.b8Q#
- 2.b8B#
- 1...Bg8
- 2.b8Q#
- 2.b8B#
- 1...Sb5
- 2.Sxf7#
- 1...Sc8
- 2.Sxf7#
- 1...e2
- 2.Sxf7#
- 2.b8Q#
- 2.b8B#
- 1...exd5!
- threat
- 1.Qg4?
- threat
- 2.Sxf7#
- 2.b8Q#
- 2.b8B#
- 1...Qxh8
- 2.Sxf7#
- 2.b8Q#
- 2.b8B#
- 1...Rxf5
- 2.Qd4#
- 2.b8Q#
- 2.b8B#
- 1...Rxh8
- 2.b8Q#
- 2.b8B#
- 1...Sxc6
- 2.Sxc6#
- 2.Sxf7#
- 1...exd5
- 2.Sxf7#
- 1...exf5
- 2.Qd4#
- 1...Rf4
- 2.Qxf4#
- 1...Qf6
- 2.Sxf7#
- 2.b8Q#
- 2.b8B#
- 1...Rf1
- 2.Sxf7#
- 2.b8Q#
- 2.b8B#
- 1...Rf2
- 2.Sxf7#
- 2.b8Q#
- 2.b8B#
- 1...Rg3
- 2.Sxf7#
- 2.Qf4#
- 2.b8Q#
- 2.b8B#
- 1...Rh3
- 2.Sxf7#
- 2.Qf4#
- 2.b8Q#
- 2.b8B#
- 1...Rf6
- 2.b8Q#
- 2.b8B#
- 1...Rg6
- 2.Sxf7#
- 2.b8Q#
- 2.b8B#
- 1...Rh7
- 2.Sxf7#
- 2.b8Q#
- 2.b8B#
- 1...Bg6
- 2.Bxg7#
- 2.b8Q#
- 2.b8B#
- 1...Be8
- 2.b8Q#
- 2.b8B#
- 1...Bg8
- 2.b8Q#
- 2.b8B#
- 1...Sb5
- 2.Sxf7#
- 1...Sc8
- 2.Sxf7#
- 1...e2
- 2.Sxf7#
- 2.b8Q#
- 2.b8B#
- 1...hxg4!
- threat
- 1.Sxe3?
- Keys
- 1.Sf6!
- threat
- 2.Qe4#
- 1...Kxf5
- 2.Qe4#
- 1...exf5
- 2.b8Q#
- 2.b8B#
- 1...Rf4
- 2.Qc5#
- threat
- 1.Sf6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 3
- Sets
- R(b);N_GUARD::QAB1(C)
- R(b);N_GUARD::QAB1(C),XR(b)
- P(e);SBLOCK,XP(F)::QAB1(C)
- Tries
- Try
- S(E);XP(a)
- Threat
- DUALS(5)
- Vars
- P(e);P_PINQ(C),XP(F)::S(L),XB(h)
- Refutation
- R(b);P_PINP(B),XS(E)
- Try
- S(E);
- Threat
- QAR1(C)
- Vars
- K(c);N_SPINQ(i),P-FLIGHT,XP(F)::QAB1(C)
- R(b);SBLOCK::QAR2(C)
- Refutation
- S(g);XB(H)
- Try
- S(E);
- Threat
- QAR1(C)
- Vars
- K(c);N_SPINQ(i),P-FLIGHT,XP(F)::QAB1(C)
- P(e);P_PINQ(C),SBLOCK,XP(F)::S(L),XB(h)
- R(b);SBLOCK::QAR2(C)
- Refutation
- S(g);XB(H)
- Try
- S(E);
- Threat
- QAR1(C)
- Vars
- K(c);N_SPINQ(i),P-FLIGHT,XP(F)::QAB1(C)
- P(e);P_PINQ(C),SBLOCK,XP(F)::S(L),XB(h)
- R(b);SBLOCK::QAR2(C)
- Refutation
- S(g);XB(H)
- Try
- Q(C);
- Threat
- DUALS(3)
- Vars
- R(f);N_SPINQ(i),XB(M)::P=Q
- P(e);P_PINS(E),SBLOCK,XP(F)::QAB1(C)
- R(f);N_SPINQ(i)::P=Q
- B(h);::P=Q
- S(g);::S(L),XB(h)
- Refutation
- P(e);XS(E)
- Try
- Q(C);
- Threat
- DUALS(3)
- Vars
- R(f);N_SPINQ(i),XB(M)::P=Q
- P(e);XS(E)::S(L),XB(h)
- P(e);P_PINS(E),SBLOCK,XP(F)::QAB1(C)
- R(b);N_GUARD::QAB1(C),XR(b)
- R(f);N_SPINQ(i)::P=Q
- B(h);::P=Q
- S(g);::S(L),XB(h)
- Refutation
- P(d);XQ(C)
- Try
- Actual
- S(E);N_PINQ(i)
- Threat
- QAR1(C)
- Vars
- K(c);P-FLIGHT,XP(F)::QAB1(C)
- P(e);P_PINQ(C),SBLOCK,XP(F)::P=Q
- R(b);SBLOCK::QAR2(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).