MESON Chess Problem Database
Problem Display
PID: 198364 (8/7p/6bK/3pp3/pn1Nk2p/R3P1pp/7P/3N1Qn1 w - - 0 1)
Smith, William James
Brisbane Courier, 1920
#2
7 + 11
| 6490 | yacpdb | 2019 |
SOLUTION
- SOUND
- Sets
- 1...Bf5
- 2.Qxf5#
- 1...Bh5
- 2.Qf5#
- 1...Bf7
- 2.Qf5#
- 1...Be8
- 2.Qf5#
- 1...Se2
- 2.Qf3#
- 1...Sf3
- 2.Qxf3#
- 1...Sa2
- 2.Qd3#
- 1...Sc2
- 2.Qd3#
- 1...Sd3
- 2.Qxd3#
- 1...Sa6
- 2.Qd3#
- 1...Sc6
- 2.Qd3#
- 1...gxh2
- 2.Sf2#
- 1...g2
- 2.Sf2#
- 1...exd4
- 2.Qf4#
- 1...Bf5
- Tries
- 1.Sb5?
- threat
- 2.Sbc3#
- 2.Sd6#
- 1...Sf3
- 2.Sd6#
- 1...Se2
- 2.Sd6#
- 1...Sa2
- 2.Sd6#
- 1...d4!
- threat
- 1.Rc3?
- 1...gxh2
- 2.Sf2#
- 1...exd4
- 2.Qf4#
- 1...Bf5
- 2.Qxf5#
- 1...Bh5
- 2.Qf5#
- 1...Bf7
- 2.Qf5#
- 1...Be8
- 2.Qf5#
- 1...Se2
- 2.Qf3#
- 1...Sf3
- 2.Qxf3#
- 1...Sa2
- 2.Qd3#
- 1...Sc2
- 2.Qd3#
- 1...Sd3
- 2.Qxd3#
- 1...Sa6
- 2.Qd3#
- 1...Sc6
- 2.Qd3#
- 1...g2
- 2.Sf2#
- 1...a3!
- 1...gxh2
- 1.Qg2+?
- 1...Sf3
- 2.Qxf3#
- 1...hxg2!
- 1...Sf3
- 1.Qf6?
- threat
- 2.Qxh4#
- 1...exd4
- 2.Qf4#
- 1...Bf5
- 2.Qxf5#
- 1...Bh5
- 2.Qf5#
- 1...Se2
- 2.Qf3#
- 1...Sf3
- 2.Qxf3#
- 1...Sd3!
- threat
- 1.hxg3?
- threat
- 2.Sf2#
- 1...exd4
- 2.Qf4#
- 1...Sd3
- 2.Qxd3#
- 1...hxg3!
- threat
- 1.Sb5?
- Keys
- 1.Qf2!
- 1...gxf2
- 2.Sxf2#
- 1...gxh2
- 2.Qxh4#
- 1...exd4
- 2.Qf4#
- 1...Bf5
- 2.Qxf5#
- 1...Bh5
- 2.Qf5#
- 1...Bf7
- 2.Qf5#
- 1...Be8
- 2.Qf5#
- 1...Se2
- 2.Qf3#
- 1...Sf3
- 2.Qxf3#
- 1...Sa2
- 2.Qc2#
- 1...Sc2
- 2.Qxc2#
- 1...Sd3
- 2.Sc3#
- 1...Sa6
- 2.Qc2#
- 1...Sc6
- 2.Qc2#
- 1...g2
- 2.Qxh4#
- 1...gxf2
- 1.Qf2!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 7
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- B(j);N_GUARD::QAB1(B),XB(j)
- B(j);N_GUARD::QAB1(B)
- S(a);N_GUARD::QAB1(B)
- S(a);N_GUARD::QAB1(B),XS(a)
- S(e);N_GUARD::QAB1(B)
- S(e);N_GUARD::QAB1(B),XS(e)
- P(b);N_GUARD,XP(C)::S(A)
- P(b);N_GUARD::S(A)
- P(i);N_GUARD,XS(F)::QAR1(B)
- Tries
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- S(a);::S(F)
- S(e);::S(F)
- Refutation
- P(h);
- Try
- R(D);
- Vars
- P(b);N_GUARD,XP(C)::S(A)
- P(i);N_GUARD,XS(F)::QAR1(B)
- B(j);N_GUARD::QAB1(B),XB(j)
- B(j);N_GUARD::QAB1(B)
- S(a);N_GUARD::QAB1(B)
- S(a);N_GUARD::QAB1(B),XS(a)
- S(e);N_GUARD::QAB1(B)
- S(e);N_GUARD::QAB1(B),XS(e)
- P(b);N_GUARD::S(A)
- Refutation
- P(d);
- Try
- Q(B);CHECK
- Vars
- S(a);N_GUARD,P_SPINS(a)::QAB1(B),XS(a)
- Refutation
- P(c);XQ(B)
- Try
- Q(B);
- Threat
- QAR(B),XP(g)
- Vars
- P(i);N_GUARD,XS(F)::QAR1(B)
- B(j);N_GUARD::QAB1(B),XB(j)
- B(j);N_GUARD::QAB1(B)
- S(a);N_GUARD::QAB1(B)
- S(a);N_GUARD::QAB1(B),XS(a)
- Refutation
- S(e);
- Try
- P(C);XP(b)
- Threat
- S(A)
- Vars
- P(i);N_GUARD,XS(F)::QAR1(B)
- S(e);N_GUARD::QAB1(B),XS(e)
- Refutation
- P(g);XP(C)
- Try
- Actual
- Q(B);
- Vars
- P(b);XQ(B)::S(A),XP(b)
- P(b);OGATE,XP(C)::QAR(B),XP(g)
- P(i);N_GUARD,XS(F)::QAR1(B)
- B(j);N_GUARD::QAB1(B),XB(j)
- B(j);N_GUARD::QAB1(B)
- S(a);N_GUARD::QAB1(B)
- S(a);N_GUARD::QAB1(B),XS(a)
- S(e);N_GUARD::QAB(B)
- S(e);N_GUARD::QAB(B),XS(e)
- S(e);SBLOCK::S(A)
- P(b);OGATE::QAR(B),XP(g)
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).