MESON Chess Problem Database
Problem Display
PID: 101241 (4n3/3B3R/6p1/4Pq1N/Q4Bkr/1pKPR3/3N3p/7n w - - 0 1)
Sparke, Arthur M
Good Companions, 1918
#2
10 + 8
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qe6
- 2.Bxe6#
- 1...Qxd7
- 2.Qxd7#
- 1...Rxh5
- 2.Bh6#
- 1...Sf2
- 2.Rg3#
- 1...Sg3
- 2.Rxg3#
- 1...Sd6
- 2.Sf6#
- 1...Sf6
- 2.Sxf6#
- 1...Sc7
- 2.Sf6#
- 1...Sg7
- 2.Sf6#
- 1...b2
- 2.Qd1#
- 1...gxh5
- 2.Bh6#
- 1...g5
- 2.Bxh2#
- 1...Qe6
- Tries
- 1.Kb2?
- 1...Qxd7
- 2.Qxd7#
- 1...Rxh5
- 2.Bh6#
- 1...gxh5
- 2.Bh6#
- 1...Qe6
- 2.Bxe6#
- 1...Sg3
- 2.Rxg3#
- 1...Sf2
- 2.Rg3#
- 1...Sd6
- 2.Sf6#
- 1...Sf6
- 2.Sxf6#
- 1...Sc7
- 2.Sf6#
- 1...Sg7
- 2.Sf6#
- 1...g5
- 2.Bxh2#
- 1...Rh3!
- 1...Qxd7
- 1.Kxb3?
- 1...Qe6+
- 2.Bxe6#
- 1...Qxd7
- 2.Qxd7#
- 1...Rxh5
- 2.Bh6#
- 1...gxh5
- 2.Bh6#
- 1...Sg3
- 2.Rxg3#
- 1...Sf2
- 2.Rg3#
- 1...Sd6
- 2.Sf6#
- 1...Sf6
- 2.Sxf6#
- 1...Sc7
- 2.Sf6#
- 1...Sg7
- 2.Sf6#
- 1...g5
- 2.Bxh2#
- 1...Rh3!
- 1...Qe6+
- 1.Sb1?
- 1...Qxd7
- 2.Qxd7#
- 1...Rxh5
- 2.Bh6#
- 1...gxh5
- 2.Bh6#
- 1...Qe6
- 2.Bxe6#
- 1...Sg3
- 2.Rxg3#
- 1...Sf2
- 2.Rg3#
- 1...Sd6
- 2.Sf6#
- 1...Sf6
- 2.Sxf6#
- 1...Sc7
- 2.Sf6#
- 1...Sg7
- 2.Sf6#
- 1...b2
- 2.Qd1#
- 1...g5
- 2.Bxh2#
- 1...Rh3!
- 1...Qxd7
- 1.Sf1?
- 1...Qxd7
- 2.Qxd7#
- 1...Rxh5
- 2.Bh6#
- 1...gxh5
- 2.Bh6#
- 1...Qe6
- 2.Bxe6#
- 1...Sg3
- 2.Rxg3#
- 1...Sf2
- 2.Rg3#
- 1...Sd6
- 2.Sf6#
- 1...Sf6
- 2.Sxf6#
- 1...Sc7
- 2.Sf6#
- 1...Sg7
- 2.Sf6#
- 1...b2
- 2.Qd1#
- 1...g5
- 2.Bxh2#
- 1...Rh3!
- 1...Qxd7
- 1.Sxb3?
- 1...Qxd7
- 2.Qxd7#
- 1...Rxh5
- 2.Bh6#
- 1...gxh5
- 2.Bh6#
- 1...Qe6
- 2.Bxe6#
- 1...Sg3
- 2.Rxg3#
- 1...Sf2
- 2.Rg3#
- 1...Sd6
- 2.Sf6#
- 1...Sf6
- 2.Sxf6#
- 1...Sc7
- 2.Sf6#
- 1...Sg7
- 2.Sf6#
- 1...g5
- 2.Bxh2#
- 1...Rh3!
- 1...Qxd7
- 1.Bg3+?
- 1...Kg5
- 2.Bxh4#
- 2.Qxh4#
- 1...Kh3!
- 1...Kg5
- 1.Bxf5+?
- 1...Kxf5
- 2.Qd7#
- 1...gxf5!
- 1...Kxf5
- 1.Rh8?
- 1...Qxd7
- 2.Qxd7#
- 1...Rxh5
- 2.Bh6#
- 1...gxh5
- 2.Bh6#
- 1...Qe6
- 2.Bxe6#
- 1...Sg3
- 2.Rxg3#
- 1...Sf2
- 2.Rg3#
- 1...Sd6
- 2.Sf6#
- 1...Sf6
- 2.Sxf6#
- 1...Sc7
- 2.Sf6#
- 1...Sg7
- 2.Sf6#
- 1...b2
- 2.Qd1#
- 1...g5
- 2.Bxh2#
- 1...Rh3!
- 1...Qxd7
- 1.Qe4?
- threat
- 2.Qf3#
- 1...Qxd7
- 2.Qxg6#
- 1...Rxh5
- 2.Bh6#
- 1...Sg3
- 2.Rxg3#
- 1...Qe6
- 2.Bxe6#
- 2.Qxg6#
- 1...Rh3!
- threat
- 1.Kb2?
- Keys
- 1.Rf3!
- threat
- 2.Be3#
- 1...Qxd7
- 2.Qxd7#
- 1...Sg3
- 2.Rxg3#
- 1...Sf2
- 2.Rg3#
- 1...Sd6
- 2.Sf6#
- 1...Sf6
- 2.Sxf6#
- threat
- 1.Rf3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 7
- Sets
- Q(f);OGATEB::B(I),XQ(f)
- Q(f);N_SPINQ(f),OGATE,XB(I)::QAB(E),XQ(f)
- R(e);SBLOCK,XS(H)::QAR(E)+B(F)
- S(a);N_GUARD::R1(D)
- S(a);N_GUARD::R1(D),XS(a)
- S(h);N_GUARD::S(H)
- S(h);N_GUARD::S(H),XS(h)
- P(c);OGATE::QAB(E)
- P(g);SBLOCK,XS(H)::QAR(E)+B(F)
- P(g);SBLOCK::QAR(E)+B(F),XP(b)
- Tries
- Try
- K(B);S_FLIGHT
- Vars
- Q(f);N_SPINQ(f),OGATE,XB(I)::QAB(E),XQ(f)
- R(e);SBLOCK,XS(H)::QAR(E)+B(F)
- P(g);SBLOCK,XS(H)::QAR(E)+B(F)
- Q(f);OGATEB::B(I),XQ(f)
- S(a);N_GUARD::R1(D),XS(a)
- S(a);N_GUARD::R1(D)
- S(h);N_GUARD::S(H)
- S(h);N_GUARD::S(H),XS(h)
- P(g);SBLOCK::QAR(E)+B(F),XP(b)
- Refutation
- R(e);
- Try
- K(B);P-FLIGHT,XP(c)
- Vars
- Q(f);CHECK,OGATEB::B(I),XQ(f)
- Q(f);N_SPINQ(f),OGATE,XB(I)::QAB(E),XQ(f)
- R(e);SBLOCK,XS(H)::QAR(E)+B(F)
- P(g);SBLOCK,XS(H)::QAR(E)+B(F)
- S(a);N_GUARD::R1(D),XS(a)
- S(a);N_GUARD::R1(D)
- S(h);N_GUARD::S(H)
- S(h);N_GUARD::S(H),XS(h)
- P(g);SBLOCK::QAR(E)+B(F),XP(b)
- Refutation
- R(e);
- Try
- S(A);
- Vars
- Q(f);N_SPINQ(f),OGATE,XB(I)::QAB(E),XQ(f)
- R(e);SBLOCK,XS(H)::QAR(E)+B(F)
- P(g);SBLOCK,XS(H)::QAR(E)+B(F)
- Q(f);OGATEB::B(I),XQ(f)
- S(a);N_GUARD::R1(D),XS(a)
- S(a);N_GUARD::R1(D)
- S(h);N_GUARD::S(H)
- S(h);N_GUARD::S(H),XS(h)
- P(c);OGATE::QAB(E)
- P(g);SBLOCK::QAR(E)+B(F),XP(b)
- Refutation
- R(e);
- Try
- S(A);
- Vars
- Q(f);N_SPINQ(f),OGATE,XB(I)::QAB(E),XQ(f)
- R(e);SBLOCK,XS(H)::QAR(E)+B(F)
- P(g);SBLOCK,XS(H)::QAR(E)+B(F)
- Q(f);OGATEB::B(I),XQ(f)
- S(a);N_GUARD::R1(D),XS(a)
- S(a);N_GUARD::R1(D)
- S(h);N_GUARD::S(H)
- S(h);N_GUARD::S(H),XS(h)
- P(c);OGATE::QAB(E)
- P(g);SBLOCK::QAR(E)+B(F),XP(b)
- Refutation
- R(e);
- Try
- S(A);XP(c)
- Vars
- Q(f);N_SPINQ(f),OGATE,XB(I)::QAB(E),XQ(f)
- R(e);SBLOCK,XS(H)::QAR(E)+B(F)
- P(g);SBLOCK,XS(H)::QAR(E)+B(F)
- Q(f);OGATEB::B(I),XQ(f)
- S(a);N_GUARD::R1(D),XS(a)
- S(a);N_GUARD::R1(D)
- S(h);N_GUARD::S(H)
- S(h);N_GUARD::S(H),XS(h)
- P(g);SBLOCK::QAR(E)+B(F),XP(b)
- Refutation
- R(e);
- Try
- B(F);CHECK
- Refutation
- K(d);S_FLIGHT
- Try
- B(I);CHECK,XQ(f)
- Vars
- K(d);S_FLIGHT,XB(I)::QAB(E)
- Refutation
- P(g);XB(I)
- Try
- R(J);
- Vars
- Q(f);N_SPINQ(f),OGATE,XB(I)::QAB(E),XQ(f)
- R(e);SBLOCK,XS(H)::QAR(E)+B(F)
- P(g);SBLOCK,XS(H)::QAR(E)+B(F)
- Q(f);OGATEB::B(I),XQ(f)
- S(a);N_GUARD::R1(D),XS(a)
- S(a);N_GUARD::R1(D)
- S(h);N_GUARD::S(H)
- S(h);N_GUARD::S(H),XS(h)
- P(c);OGATE::QAB(E)
- P(g);SBLOCK::QAR(E)+B(F),XP(b)
- Refutation
- R(e);
- Try
- Q(E);
- Threat
- QAB1(E)
- Vars
- Q(f);N_SPINQ(f),OGATE,XB(I)::QAR2(E),XP(g)
- R(e);SBLOCK,XS(H)::QAR(E)+B(F)
- S(a);N_GUARD::R1(D),XS(a)
- Refutation
- R(e);
- Try
- Actual
- R(D);
- Threat
- QAR(E)+B(F)
- Vars
- Q(f);N_SPINQ(f),OGATE,XB(I)::QAB(E),XQ(f)
- S(a);N_GUARD::R1(D),XS(a)
- S(a);N_GUARD::R1(D)
- S(h);N_GUARD::S(H)
- S(h);N_GUARD::S(H),XS(h)
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).