MESON Chess Problem Database
Problem Display
PID: 208863 (n3k2N/4B3/3KN1pp/1p1Pp2n/PR3b2/3b1Q2/4B3/5R2 w - - 0 1)
Fitch, Charles Lewis
Detroit Free Press, 1876
#2
10 + 9
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Bb1
- 2.Bxb5#
- 1...Bc2
- 2.Bxb5#
- 1...Be4
- 2.Bxb5#
- 1...Bf5
- 2.Bxb5#
- 1...Bc1
- 2.Qf7#
- 2.Qf8#
- 1...Bd2
- 2.Qf7#
- 2.Qf8#
- 1...Bh2
- 2.Qf7#
- 2.Qf8#
- 1...Be3
- 2.Qf7#
- 2.Qf8#
- 1...Bg3
- 2.Qf7#
- 2.Qf8#
- 1...Bg5
- 2.Qf7#
- 2.Qf8#
- 1...Sg3
- 2.Sg7#
- 1...Sf6
- 2.Sg7#
- 1...Sg7
- 2.Sxg7#
- 1...Sb6
- 2.Sc7#
- 1...Sc7
- 2.Sxc7#
- 1...bxa4
- 2.Rb8#
- 1...Bb1
- Tries
- 1.Bxd3?
- threat
- 2.Bxb5#
- 2.Bxg6#
- 1...bxa4
- 2.Bb5#
- 2.Bxg6#
- 2.Rb8#
- 1...Sf6
- 2.Sg7#
- 2.Bxg6#
- 1...Sb6
- 2.Sc7#
- 2.Bxg6#
- 1...Sc7
- 2.Sxc7#
- 2.Bxg6#
- 1...g5
- 2.Bxb5#
- 2.Bg6#
- 2.Qxh5#
- 1...e4+!
- threat
- 1.Rxf4?
- threat
- 2.Rf8#
- 1...Sxf4
- 2.Sg7#
- 1...Bf5
- 2.Bxb5#
- 1...Sf6
- 2.Sg7#
- 1...exf4!
- threat
- 1.Rxb5?
- threat
- 2.Rb8#
- 1...Bxb5
- 2.Bxb5#
- 1...Sb6
- 2.Sc7#
- 1...e4+!
- threat
- 1.Qxd3?
- threat
- 2.Qxb5#
- 2.Qxg6#
- 1...bxa4
- 2.Rb8#
- 2.Qb5#
- 2.Qxg6#
- 1...g5
- 2.Bxh5#
- 2.Qxb5#
- 2.Qg6#
- 1...Sf6
- 2.Sg7#
- 2.Qxg6#
- 1...Sb6
- 2.Sc7#
- 2.Qxg6#
- 1...Sc7
- 2.Sxc7#
- 2.Qxg6#
- 1...e4+!
- threat
- 1.Qxf4?
- threat
- 2.Qf7#
- 2.Qf8#
- 1...Sxf4
- 2.Sg7#
- 1...Bf5
- 2.Bxb5#
- 1...Sf6
- 2.Sg7#
- 1...exf4!
- threat
- 1.Bxd3?
- Keys
- 1.Qe4!
- 1...Bxe2
- 2.Qxg6#
- 1...Bxe4
- 2.Bxb5#
- 1...bxa4
- 2.Rb8#
- 1...Bb1
- 2.Bxb5#
- 1...Bc2
- 2.Bxb5#
- 1...Bc4
- 2.Qxg6#
- 1...Bc1
- 2.Rf8#
- 1...Bd2
- 2.Rf8#
- 1...Bh2
- 2.Rf8#
- 1...Be3
- 2.Rf8#
- 1...Bg3
- 2.Rf8#
- 1...Bg5
- 2.Rf8#
- 1...Sg3
- 2.Sg7#
- 1...Sf6
- 2.Sg7#
- 1...Sg7
- 2.Sxg7#
- 1...Sb6
- 2.Sc7#
- 1...Sc7
- 2.Sxc7#
- 1...g5
- 2.Bxh5#
- 1...Bxe2
- 1.Qe4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 9
- REMOVED MATES = 1
- Sets
- B(a);OGATE::B(B),XP(c)
- S(e);N_GUARD::S(H)
- S(e);N_GUARD::S(H),XS(e)
- S(h);N_GUARD::S(H)
- S(h);N_GUARD::S(H),XS(h)
- P(c);OGATE,XP(D)::R(E)
- Tries
- Try
- B(B);XB(a)
- Threat
- DUALS(2)
- Refutation
- P(d);CHECK
- Try
- R(E);XB(b)
- Threat
- R1(E)
- Vars
- S(e);N_GUARD,XR(E)::S(H)
- B(a);OGATE::B(B),XP(c)
- S(e);N_GUARD::S(H)
- Refutation
- P(d);XR(E)
- Try
- R(E);XP(c)
- Threat
- R(E)
- Vars
- B(a);OGATE,XR(E)::B(B),XB(a)
- S(h);N_GUARD::S(H)
- Refutation
- P(d);CHECK
- Try
- Q(C);XB(a)
- Threat
- DUALS(2)
- Refutation
- P(d);CHECK
- Try
- Q(C);XB(b)
- Threat
- DUALS(2)
- Vars
- S(e);N_GUARD,XQ(C)::S(H)
- B(a);OGATE::B(B),XP(c)
- S(e);N_GUARD::S(H)
- Refutation
- P(d);XQ(C)
- Try
- Actual
- Q(C);
- Vars
- B(a);N_GUARD,XB(B)::QAB(C),XP(f)
- B(a);OGATE,XQ(C)::B(B),XP(c)
- P(c);OGATE,XP(D)::R(E)
- B(a);OGATE::B(B),XP(c)
- B(a);N_GUARD::QAB(C),XP(f)
- B(b);OGATE::R1(A)
- S(e);N_GUARD::S(H)
- S(e);N_GUARD::S(H),XS(e)
- S(h);N_GUARD::S(H)
- S(h);N_GUARD::S(H),XS(h)
- P(f);OGATEB::B(B),XS(e)
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).