MESON Chess Problem Database
Problem Display
PID: 103952 (8/1B6/4p3/4K3/1b2N1pq/7n/4NpPp/r6k w - - 0 1)
Janet, Frank
Brooklyn Eagle, 1916
(First published on Thu Feb 17 1916)
#2
5 + 9
| 2642 | Good Companions (February) | 1917 |
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Kxg2
- 2.Sd2#
- 2.S4g3#
- 1...Qg3+
- 2.S4xg3#
- 1...Qe7
- 2.S4g3#
- 1...Qd8
- 2.S4g3#
- 1...Qh6
- 2.S4g3#
- 1...Qh7
- 2.S4g3#
- 1...Kxg2
- Tries
- 1.gxh3?
- threat
- 2.Sd2#
- 2.Sxf2#
- 2.S4c3#
- 2.S4g3#
- 2.Sc5#
- 2.Sg5#
- 2.Sd6#
- 2.Sf6#
- 1...Qg3+
- 2.S4xg3#
- 1...Qg5+
- 2.Sxg5#
- 1...Qf6+
- 2.Sxf6#
- 1...Qh5+
- 2.Sg5#
- 1...Qh8+
- 2.Sf6#
- 1...Ra5+
- 2.Sc5#
- 1...Bc3+
- 2.S4xc3#
- 1...Bd6+
- 2.Sxd6#
- 1...Qxh3
- 2.Sxf2#
- 2.S4g3#
- 1...gxh3
- 2.Sxf2#
- 2.S4g3#
- 1...f1Q
- 2.Sf2#
- 2.S4g3#
- 1...f1S
- 2.Sd2#
- 2.Sf2#
- 2.S4c3#
- 2.S4g3#
- 2.Sc5#
- 2.Sg5#
- 2.Sd6#
- 2.Sf6#
- 1...f1B
- 2.Sf2#
- 2.S4g3#
- 1...f1R
- 2.Sf2#
- 2.S4g3#
- 1...Qe7
- 2.Sxf2#
- 2.S4g3#
- 1...Qd8
- 2.Sxf2#
- 2.S4g3#
- 2.Sd6#
- 1...Qh7
- 2.Sxf2#
- 2.S4g3#
- 1...Rc1
- 2.Sxf2#
- 2.S4c3#
- 2.S4g3#
- 2.Sc5#
- 1...Rd1
- 2.Sd2#
- 2.Sxf2#
- 2.S4g3#
- 1...Rg1
- 2.Sxf2#
- 2.S4g3#
- 1...Ra3
- 2.Sxf2#
- 2.S4c3#
- 2.S4g3#
- 1...Ra6
- 2.Sxf2#
- 2.S4g3#
- 1...Ra7
- 2.Sxf2#
- 2.S4g3#
- 1...Bd2
- 2.Sxd2#
- 2.Sxf2#
- 2.S4c3#
- 2.S4g3#
- 2.Sc5#
- 2.Sg5#
- 2.Sd6#
- 2.Sf6#
- 1...Bc5
- 2.Sd2#
- 2.Sxf2#
- 2.S4c3#
- 2.S4g3#
- 2.Sxc5#
- 2.Sg5#
- 2.Sd6#
- 2.Sf6#
- 1...g3
- 2.Sxf2#
- 2.S4xg3#
- 1...Kg2!
- threat
- 1.gxh3?
- Keys
- 1.g3!
- threat
- 2.Sd2#
- 2.Sxf2#
- 2.S4c3#
- 2.Sc5#
- 2.Sg5#
- 2.Sd6#
- 2.Sf6#
- 1...Qxg3+
- 2.S4xg3#
- 1...Qg5+
- 2.Sxg5#
- 1...Qf6+
- 2.Sxf6#
- 1...Qh5+
- 2.Sg5#
- 1...Qh8+
- 2.Sf6#
- 1...Ra5+
- 2.Sc5#
- 1...Bc3+
- 2.S4xc3#
- 1...Bd6+
- 2.Sxd6#
- 1...Kg2
- 2.Sd2#
- 1...f1Q
- 2.Sf2#
- 1...f1S
- 2.Sd2#
- 2.Sf2#
- 2.S4c3#
- 2.Sc5#
- 2.Sg5#
- 2.Sd6#
- 2.Sf6#
- 1...f1B
- 2.Sf2#
- 1...f1R
- 2.Sf2#
- 1...Qe7
- 2.Sxf2#
- 1...Qd8
- 2.Sxf2#
- 2.Sd6#
- 1...Qh7
- 2.Sxf2#
- 1...Rc1
- 2.Sxf2#
- 2.S4c3#
- 2.Sc5#
- 1...Rd1
- 2.Sd2#
- 2.Sxf2#
- 1...Rg1
- 2.Sxf2#
- 1...Ra3
- 2.Sxf2#
- 2.S4c3#
- 1...Ra6
- 2.Sxf2#
- 1...Ra7
- 2.Sxf2#
- 1...Bd2
- 2.Sxd2#
- 2.Sxf2#
- 2.S4c3#
- 2.Sc5#
- 2.Sg5#
- 2.Sd6#
- 2.Sf6#
- 1...Bc5
- 2.Sd2#
- 2.Sxf2#
- 2.S4c3#
- 2.Sxc5#
- 2.Sg5#
- 2.Sd6#
- 2.Sf6#
- 1...Sg1
- 2.Sxf2#
- 1...Sf4
- 2.Sxf2#
- 1...Sg5
- 2.Sxf2#
- 2.Sxg5#
- threat
- 1.g3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 16
- REMOVED MATES = 2
- Sets
- Q(h);CHECK,N_GUARD::S(C),XQ(h)
- Q(h);N_GUARD::S(C)
- Tries
- Try
- P(B);XS(e)
- Threat
- DUALS(8)
- Vars
- Q(h);CHECK::B(E)+S(C),DCHECK,XQ(h)
- Q(h);CHECK::B(E)+S(C),XQ(h)
- Q(h);CHECK::B(E)+S(C)
- R(a);CHECK::B(E)+S(C)
- B(f);CHECK::B(E)+S(C),XB(f)
- Refutation
- K(b);S_FLIGHT
- Try
- Actual
- P(B);
- Threat
- DUALS(7)
- Vars
- Q(h);CHECK,XP(B)::B(E)+S(C),DCHECK,XQ(h)
- Q(h);CHECK::B(E)+S(C),XQ(h)
- Q(h);CHECK::B(E)+S(C)
- R(a);CHECK::B(E)+S(C)
- B(f);CHECK::B(E)+S(C),XB(f)
- K(b);S_FLIGHT::B(E)+S(C)
- P(c);::B(E)+S(C),DCHECK
- Q(h);::B(E)+S(C),DCHECK,XP(c)
- R(a);::B(E)+S(C),DCHECK,XP(c)
- S(e);::B(E)+S(C),DCHECK,XP(c)
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).