MESON Chess Problem Database
Problem Display
PID: 61158 (8/3N2p1/4K3/2B2p2/2n1k3/3Nbp2/2P5/4Q3 w - - 0 1)
Lewis, Robert Tony
Schach-Aktiv, 1996
#2
6 + 6
| 136 | Problem Observer | 2005 |
| 133 | The Problemist Supplement | 2011 |
SOLUTION
- SOUND
- Sets
- 1...Sb2
- 2.Qxe3#
- 1...Sd2
- 2.Qxe3#
- 1...Sa3
- 2.Qxe3#
- 1...Sa5
- 2.Qxe3#
- 1...Se5
- 2.Qxe3#
- 1...Sb6
- 2.Qxe3#
- 1...Sd6
- 2.Qxe3#
- 1...f2
- 2.Qh1#
- 1...f4
- 2.Sf2#
- 1...g5
- 2.Sf6#
- 1...g6
- 2.Sf6#
- 1...Sb2
- Tries
- 1.Bb6?
- 1...f2
- 2.Qh1#
- 1...g5
- 2.Sf6#
- 1...Sb2
- 2.Qxe3#
- 1...Sd2
- 2.Qxe3#
- 1...Sa3
- 2.Qxe3#
- 1...Sa5
- 2.Qxe3#
- 1...Se5
- 2.Qxe3#
- 1...Sd6
- 2.Qxe3#
- 1...f4
- 2.Sf2#
- 1...g6
- 2.Sf6#
- 1...Sxb6!
- 1...f2
- 1.Ba7?
- 1...f2
- 2.Qh1#
- 1...g5
- 2.Sf6#
- 1...Sb2
- 2.Qxe3#
- 1...Sd2
- 2.Qxe3#
- 1...Sa3
- 2.Qxe3#
- 1...Sa5
- 2.Qxe3#
- 1...Se5
- 2.Qxe3#
- 1...Sd6
- 2.Qxe3#
- 1...f4
- 2.Sf2#
- 1...g6
- 2.Sf6#
- 1...Sb6!
- 1...f2
- 1.Qh4+?
- 1...Bf4
- 2.Sf2#
- 2.Qxf4#
- 1...f4!
- 1...Bf4
- 1.Qa1?
- threat
- 2.Qa8#
- 1...Bd4
- 2.Qxd4#
- 1...Sa3
- 2.Qe5#
- 1...Sa5
- 2.Qe5#
- 1...Se5
- 2.Qxe5#
- 1...Sb6
- 2.Qe5#
- 1...Sd6
- 2.Qe5#
- 1...Bxc5!
- threat
- 1.Bb6?
- Keys
- 1.Qg3!
- 1...Bxc5
- 2.Qf4#
- 1...Bd4
- 2.Qf4#
- 1...f4
- 2.Qg6#
- 1...Bc1
- 2.Sf2#
- 1...Bg1
- 2.Qf4#
- 1...Bd2
- 2.Sf2#
- 1...Bf2
- 2.Sxf2#
- 2.Qf4#
- 1...Bf4
- 2.Sf2#
- 2.Qxf4#
- 1...Bg5
- 2.Sf2#
- 1...Bh6
- 2.Sf2#
- 1...Sb2
- 2.Qe5#
- 1...Sd2
- 2.Qe5#
- 1...Sa3
- 2.Qe5#
- 1...Sa5
- 2.Qe5#
- 1...Se5
- 2.Qxe5#
- 1...Sb6
- 2.Qe5#
- 1...Sd6
- 2.Qe5#
- 1...f2
- 2.Qg2#
- 1...g5
- 2.Sf6#
- 1...g6
- 2.Sf6#
- 1...Bxc5
- 1.Qg3!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 9
- ADDED MATES = 7
- REMOVED MATES = 0
- Sets
- S(c);N_GUARD::QAR1(A),XB(a)
- P(b);OGATEB::QAB(A)
- P(e);SBLOCK::S(C)
- P(f);N_GUARD::S(F)
- Tries
- Try
- B(D);
- Vars
- P(b);OGATEB::QAB(A)
- P(f);N_GUARD::S(F)
- S(c);N_GUARD::QAR1(A),XB(a)
- P(e);SBLOCK::S(C)
- Refutation
- S(c);XB(D)
- Try
- B(D);
- Vars
- P(b);OGATEB::QAB(A)
- P(f);N_GUARD::S(F)
- S(c);N_GUARD::QAR1(A),XB(a)
- P(e);SBLOCK::S(C)
- Refutation
- S(c);
- Try
- Q(A);CHECK,N_PINB(a)
- Refutation
- P(e);P_SPINP(e)
- Try
- Q(A);N_PINB(a)
- Threat
- QAB(A)
- Vars
- B(a);N_GUARD::QAR1(A),XB(a)
- S(c);N_GUARD::QAR1(A)
- S(c);N_GUARD::QAR1(A),XS(c)
- Refutation
- B(a);XB(D)
- Try
- Actual
- Q(A);N_PINB(a)
- Vars
- B(a);N_GUARD,XB(D)::QAR1(A)
- B(a);N_GUARD::QAR1(A)
- P(e);OGATEB::QAB(A)
- B(a);N_GUARD::S(C)
- S(c);N_GUARD::QAR1(A)
- S(c);N_GUARD::QAR1(A),XS(c)
- P(b);OGATEB::QAB(A)
- P(f);N_GUARD::S(F)
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).