MESON Chess Problem Database
Problem Display
PID: 145587 (2B5/n1K5/4Q3/1p1pN3/1P1kb3/3p2P1/1N1P4/6n1 w - - 0 1)
Coombs, Leslie D
Good Companions (October), 1917
#2
8 + 7
SOLUTION
- SOUND
- Sets
- 1...Sc6
- 2.Sxc6#
- 1...Sxc8
- 2.Sc6#
- 1...Sc6
- Tries
- 1.Sexd3?
- threat
- 2.Qe5#
- 2.Qb6#
- 2.Qf6#
- 1...Bxd3
- 2.Qe3#
- 1...Sxc8
- 2.Qe5#
- 2.Qf6#
- 1...Bh1
- 2.Qe3#
- 2.Qe5#
- 1...Bg2
- 2.Qe3#
- 2.Qe5#
- 1...Bf3
- 2.Qe3#
- 2.Qe5#
- 1...Bf5
- 2.Qe3#
- 2.Qe5#
- 1...Bg6
- 2.Qe3#
- 2.Qe5#
- 1...Bh7
- 2.Qe3#
- 2.Qe5#
- 1...Sf3
- 2.Qb6#
- 1...Sc6!
- threat
- 1.Sf3+?
- 1...Bxf3
- 2.Qe3#
- 1...Sxf3!
- 1...Bxf3
- 1.Sg4?
- threat
- 2.Qe5#
- 2.Qb6#
- 2.Qf6#
- 1...Sxc8
- 2.Qe5#
- 2.Qf6#
- 1...Bh1
- 2.Qe3#
- 2.Qe5#
- 1...Bg2
- 2.Qe3#
- 2.Qe5#
- 1...Bf3
- 2.Qe3#
- 2.Qe5#
- 1...Bf5
- 2.Qe3#
- 2.Qe5#
- 1...Bg6
- 2.Qe3#
- 2.Qe5#
- 1...Bh7
- 2.Qe3#
- 2.Qe5#
- 1...Sf3
- 2.Qb6#
- 1...Sc6!
- threat
- 1.Sg6?
- threat
- 2.Qe5#
- 2.Qb6#
- 2.Qf6#
- 1...Bxg6
- 2.Qe3#
- 1...Sxc8
- 2.Qe5#
- 2.Qf6#
- 1...Bh1
- 2.Qe3#
- 2.Qe5#
- 1...Bg2
- 2.Qe3#
- 2.Qe5#
- 1...Bf3
- 2.Qe3#
- 2.Qe5#
- 1...Bf5
- 2.Qe3#
- 2.Qe5#
- 1...Sf3
- 2.Qb6#
- 1...Sc6!
- threat
- 1.Sd7?
- threat
- 2.Qe5#
- 2.Qb6#
- 2.Qf6#
- 1...Sxc8
- 2.Qe5#
- 2.Qf6#
- 1...Bh1
- 2.Qe3#
- 2.Qe5#
- 1...Bg2
- 2.Qe3#
- 2.Qe5#
- 1...Bf3
- 2.Qe3#
- 2.Qe5#
- 1...Bf5
- 2.Qe3#
- 2.Qe5#
- 1...Bg6
- 2.Qe3#
- 2.Qe5#
- 1...Bh7
- 2.Qe3#
- 2.Qe5#
- 1...Sf3
- 2.Qb6#
- 1...Sc6!
- threat
- 1.Sf7?
- threat
- 2.Qe5#
- 2.Qb6#
- 2.Qf6#
- 1...Sxc8
- 2.Qe5#
- 2.Qf6#
- 1...Bh1
- 2.Qe3#
- 2.Qe5#
- 1...Bg2
- 2.Qe3#
- 2.Qe5#
- 1...Bf3
- 2.Qe3#
- 2.Qe5#
- 1...Bf5
- 2.Qe3#
- 2.Qe5#
- 1...Bg6
- 2.Qe3#
- 2.Qe5#
- 1...Bh7
- 2.Qe3#
- 2.Qe5#
- 1...Sf3
- 2.Qb6#
- 1...Sc6!
- threat
- 1.Sexd3?
- Keys
- 1.Qg4!
- 1...Kxe5
- 2.Qg7#
- 1...Sxc8
- 2.Sc6#
- 1...Sc6
- 2.Sxc6#
- 1...Se2
- 2.Sf3#
- 1...Sf3
- 2.Sxf3#
- 1...Sh3
- 2.Sf3#
- 1...Kxe5
- 1.Qg4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- S(g);N_GUARD::S(E),XS(g)
- S(g);N_GUARD,XB(H)::S(E)
- Tries
- Try
- S(E);XP(b)
- Threat
- DUALS(3)
- Vars
- B(d);OGATE,XS(E)::QAB1(F)
- S(a);::QAB(F)
- Refutation
- S(g);
- Try
- S(E);CHECK
- Vars
- B(d);OGATE,XS(E)::QAB1(F)
- Refutation
- S(a);XS(E)
- Try
- S(E);
- Threat
- DUALS(3)
- Vars
- S(a);::QAB(F)
- Refutation
- S(g);
- Try
- S(E);
- Threat
- DUALS(3)
- Vars
- B(d);OGATE,XS(E)::QAB1(F)
- S(a);::QAB(F)
- Refutation
- S(g);
- Try
- S(E);
- Threat
- DUALS(3)
- Vars
- S(a);::QAB(F)
- Refutation
- S(g);
- Try
- S(E);
- Threat
- DUALS(3)
- Vars
- S(a);::QAB(F)
- Refutation
- S(g);
- Try
- Actual
- Q(F);P_PINB(d)
- Vars
- K(c);N_SPINB(d),OGATEB,S_FLIGHT,XS(E)::QAB(F)
- S(g);N_GUARD,XB(H)::S(E)
- S(g);N_GUARD::S(E),XS(g)
- S(a);N_GUARD::S(E)
- S(a);N_GUARD::S(E),XS(a)
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).