MESON Chess Problem Database
Problem Display
PID: 48751 (2Q5/8/3BPp1K/1p6/nN1kbn1N/1P6/3P4/1B6 w - - 0 1)
Keeney, Palmer Gunkel
The Chess Review, 1933
#2
9 + 6
SOLUTION
- SOUND
- Sets
- 1...Bh1
- 2.Sf5#
- 1...Bg2
- 2.Sf5#
- 1...Bf3
- 2.Sxf3#
- 2.Sf5#
- 1...Bd5
- 2.Sf5#
- 1...Bf5
- 2.Sf3#
- 2.Sxf5#
- 1...Bc6
- 2.Sf5#
- 1...Bg6
- 2.Sf3#
- 1...Bb7
- 2.Sf5#
- 1...Bh7
- 2.Sf3#
- 1...Ba8
- 2.Sf5#
- 1...Sb2
- 2.Qc3#
- 2.Qc5#
- 1...Sc3
- 2.Qxc3#
- 2.Qc5#
- 1...Sc5
- 2.Qxc5#
- 1...Sb6
- 2.Qc3#
- 2.Qc5#
- 1...Sd5
- 2.Sc6#
- 1...f5
- 2.Qh8#
- 1...Bh1
- Tries
- 1.Bc5+?
- 1...Ke5
- 2.d4#
- 1...Sxc5!
- 1...Ke5
- 1.Qb7?
- threat
- 2.Qxe4#
- 1...Bxb1
- 2.Sf3#
- 1...Bxb7
- 2.Sf5#
- 1...Bh1
- 2.Sf5#
- 1...Bc2
- 2.Sf3#
- 1...Bg2
- 2.Sf5#
- 1...Bd3
- 2.Sf3#
- 1...Bf3
- 2.Sxf3#
- 2.Sf5#
- 1...Bd5
- 2.Sf5#
- 1...Bf5
- 2.Sf3#
- 2.Sxf5#
- 1...Bc6
- 2.Sf5#
- 1...Bg6
- 2.Sf3#
- 1...Bh7
- 2.Sf3#
- 1...Sc3
- 2.Qb6#
- 2.Qa7#
- 1...Sd3
- 2.Sc2#
- 1...Sd5
- 2.Sc6#
- 1...f5
- 2.Qg7#
- 1...Sc5!
- threat
- 1.Bc5+?
- Keys
- 1.Qa8!
- threat
- 2.Qxe4#
- 1...Bxb1
- 2.Sf3#
- 1...Bxa8
- 2.Sf5#
- 1...Bh1
- 2.Sf5#
- 1...Bc2
- 2.Sf3#
- 1...Bg2
- 2.Sf5#
- 1...Bd3
- 2.Sf3#
- 1...Bf3
- 2.Sxf3#
- 2.Sf5#
- 1...Bd5
- 2.Sf5#
- 1...Bf5
- 2.Sf3#
- 2.Sxf5#
- 1...Bc6
- 2.Sf5#
- 1...Bg6
- 2.Sf3#
- 1...Bb7
- 2.Sf5#
- 1...Bh7
- 2.Sf3#
- 1...Sc3
- 2.Qa7#
- 1...Sc5
- 2.Qa1#
- 1...Sd3
- 2.Sc2#
- 1...Sd5
- 2.Sc6#
- 1...f5
- 2.Qh8#
- threat
- 1.Qa8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 5
- REMOVED MATES = 0
- Sets
- B(c);N_GUARD::S(E)
- S(a);N_GUARD::QAB1(I),XS(a)
- S(d);SBLOCK,S_CUTB(c)::S(D)
- P(f);OGATEB::QAB(I)
- Tries
- Try
- B(F);CHECK
- Vars
- K(b);OGATE,S_FLIGHT::P(B)
- Refutation
- S(a);XB(F)
- Try
- Q(I);
- Threat
- QAR1(I),XB(c)
- Vars
- B(c);N_GUARD,XB(A)::S(E)
- B(c);N_GUARD,XQ(I)::S(E)
- B(c);N_GUARD::S(E)
- S(d);SBLOCK,S_CUTB(c)::S(D)
- P(f);OGATEB::QAB(I)
- Refutation
- S(a);
- Try
- Actual
- Q(I);
- Threat
- QAR1(I),XB(c)
- Vars
- B(c);N_GUARD,XB(A)::S(E)
- B(c);N_GUARD,XQ(I)::S(E)
- B(c);N_GUARD::S(E)
- S(a);N_GUARD::QAB(I)
- S(a);OGATE::QAB(I)
- S(d);SBLOCK,S_CUTB(c)::S(D)
- P(f);OGATEB::QAB(I)
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).