MESON Chess Problem Database
Problem Display
PID: 153451 (n7/1p2pp2/N1R1PBn1/b2k3P/B7/5P2/2K4Q/8 w - - 0 1)
Janet, Frank
Good Companions (February), 1916
#2
9 + 7
| 15 | British Chess Magazine | 1916 |
SOLUTION
- SOUND
- Sets
- 1...Bd2
- 2.Qxd2#
- 1...Bb4
- 2.Sxb4#
- 1...Bb6
- 2.Sb4#
- 1...Bc7
- 2.Sb4#
- 2.Qd2#
- 1...Bd8
- 2.Sb4#
- 2.Qd2#
- 1...Sh4
- 2.Qe5#
- 1...Se5
- 2.Qxe5#
- 1...Sf8
- 2.Qe5#
- 1...Sh8
- 2.Qe5#
- 1...Sb6
- 2.Sc7#
- 1...bxc6
- 2.Bb3#
- 1...exf6
- 2.Qd6#
- 1...fxe6
- 2.Rc5#
- 1...Bd2
- Tries
- 1.Kb1?
- threat
- 2.Qa2#
- 1...bxc6
- 2.Bb3#
- 1...exf6
- 2.Qd6#
- 1...Se5
- 2.Qxe5#
- 1...Bd2
- 2.Qxd2#
- 1...Sb6
- 2.Sc7#
- 1...b5!
- threat
- 1.Kc1?
- threat
- 2.Qa2#
- 1...Bd2+
- 2.Qxd2#
- 1...bxc6
- 2.Bb3#
- 1...exf6
- 2.Qd6#
- 1...Se5
- 2.Qxe5#
- 1...Sb6
- 2.Sc7#
- 1...b5!
- threat
- 1.Kd1?
- threat
- 2.Qa2#
- 1...bxc6
- 2.Bb3#
- 1...exf6
- 2.Qd6#
- 1...Se5
- 2.Qxe5#
- 1...Bd2
- 2.Qxd2#
- 1...Sb6
- 2.Sc7#
- 1...b5!
- threat
- 1.Sc7+?
- 1...Bxc7
- 2.Qd2#
- 1...Sxc7!
- 1...Bxc7
- 1.Rd6+?
- 1...Kc4
- 2.Rd4#
- 2.Qe2#
- 1...exd6!
- 1...Kc4
- 1.Qg1?
- threat
- 2.Qd4#
- 2.Qc5#
- 1...exf6
- 2.Qc5#
- 1...b5
- 2.Qc5#
- 1...Bc3
- 2.Qc5#
- 1...Bb4
- 2.Sxb4#
- 2.Qd4#
- 1...Bb6
- 2.Sb4#
- 1...Se5
- 2.Qc5#
- 1...b6
- 2.Qd4#
- 1...bxc6!
- threat
- 1.Qf4?
- threat
- 2.Qc4#
- 2.Qd4#
- 2.Qe4#
- 1...bxc6
- 2.Bb3#
- 1...exf6
- 2.Rd6#
- 2.Qd6#
- 2.Qe4#
- 1...b5
- 2.Qe4#
- 1...Bc3
- 2.Qc4#
- 2.Qe4#
- 1...Bb6
- 2.Sb4#
- 2.Qc4#
- 2.Qe4#
- 1...Se5
- 2.Qxe5#
- 2.Qe4#
- 1...Sb6
- 2.Sc7#
- 2.Qd4#
- 2.Qe4#
- 1...Sxf4!
- threat
- 1.Qe2?
- threat
- 2.Qd3#
- 2.Qc4#
- 2.Qb5#
- 2.Qe4#
- 1...bxa6
- 2.Qd3#
- 2.Qc4#
- 2.Qe4#
- 1...exf6
- 2.Qe4#
- 1...Se5
- 2.Qe4#
- 2.Qxe5#
- 1...b5
- 2.Qxb5#
- 2.Qe4#
- 1...Sb6
- 2.Sc7#
- 2.Qd3#
- 2.Qb5#
- 2.Qe4#
- 1...Bc3
- 2.Qc4#
- 2.Qb5#
- 2.Qe4#
- 1...Bb4
- 2.Sxb4#
- 2.Qd3#
- 2.Qc4#
- 2.Qe4#
- 1...Bb6
- 2.Sb4#
- 2.Qc4#
- 2.Qe4#
- 1...Sf4
- 2.Qc4#
- 2.Qb5#
- 2.Qe4#
- 2.Qe5#
- 1...Sc7
- 2.Qd3#
- 2.Qc4#
- 2.Qe4#
- 1...bxc6!
- threat
- 1.Qf2?
- threat
- 2.Qd4#
- 2.Qc5#
- 1...exf6
- 2.Qc5#
- 1...b5
- 2.Qc5#
- 1...Bc3
- 2.Qc5#
- 1...Bb4
- 2.Sxb4#
- 2.Qd4#
- 1...Bb6
- 2.Sb4#
- 1...Se5
- 2.Qc5#
- 1...b6
- 2.Qd4#
- 1...bxc6!
- threat
- 1.Kb1?
- Keys
- 1.Qb8!
- 1...bxa6
- 2.Qb3#
- 1...bxc6
- 2.Bb3#
- 1...exf6
- 2.Qd6#
- 1...fxe6
- 2.Rc5#
- 1...Se5
- 2.Qxe5#
- 1...b5
- 2.Qxb5#
- 1...Sb6
- 2.Sc7#
- 1...Be1
- 2.Qd8#
- 1...Bd2
- 2.Qd8#
- 1...Bc3
- 2.Qd8#
- 1...Bb4
- 2.Sxb4#
- 1...Bb6
- 2.Sb4#
- 1...Bc7
- 2.Sb4#
- 1...Bd8
- 2.Sb4#
- 2.Qxd8#
- 1...Sf4
- 2.Qe5#
- 1...Sh4
- 2.Qe5#
- 1...Sf8
- 2.Qe5#
- 1...Sh8
- 2.Qe5#
- 1...Sc7
- 2.Qd8#
- 1...b6
- 2.Qd8#
- 1...bxa6
- 1.Qb8!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 1
- ADDED MATES = 8
- REMOVED MATES = 0
- Sets
- B(a);N_GUARD::QAR(B),XB(a)
- B(a);N_GUARD::S(F),XB(a)
- B(a);N_GUARD::S(F)
- S(c);N_GUARD::QAR1(B)
- S(c);N_GUARD::QAR1(B),XS(c)
- S(g);N_GUARD,S_CUTB(a)::S(F)
- P(d);SBLOCK,XR(G)::B(D)
- P(e);N_GUARD,XB(I)::QAR1(B)
- P(f);SBLOCK,XP(H)::R1(G)
- Tries
- Try
- K(A);S_FLIGHT
- Threat
- QAB(B)
- Vars
- P(d);SBLOCK,XR(G)::B(D)
- P(e);N_GUARD,XB(I)::QAR1(B)
- S(c);N_GUARD::QAR1(B),XS(c)
- B(a);N_GUARD::QAR(B),XB(a)
- S(g);N_GUARD,S_CUTB(a)::S(F)
- Refutation
- P(d);
- Try
- K(A);P-FLIGHT
- Threat
- QAB(B)
- Vars
- B(a);CHECK,N_GUARD::QAR(B),XB(a)
- P(d);SBLOCK,XR(G)::B(D)
- P(e);N_GUARD,XB(I)::QAR1(B)
- S(c);N_GUARD::QAR1(B),XS(c)
- S(g);N_GUARD,S_CUTB(a)::S(F)
- Refutation
- P(d);
- Try
- K(A);S_FLIGHT
- Threat
- QAB(B)
- Vars
- P(d);SBLOCK,XR(G)::B(D)
- P(e);N_GUARD,XB(I)::QAR1(B)
- S(c);N_GUARD::QAR1(B),XS(c)
- B(a);N_GUARD::QAR(B),XB(a)
- S(g);N_GUARD,S_CUTB(a)::S(F)
- Refutation
- P(d);
- Try
- S(F);CHECK
- Vars
- B(a);XS(F)::QAR(B)
- Refutation
- S(g);XS(F)
- Try
- R(G);CHECK
- Refutation
- P(e);XR(G)
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- P(e);XB(I)::QAR1(B)
- P(d);::QAR1(B)
- B(a);::QAR1(B)
- B(a);N_GUARD::S(F)
- S(c);::QAR1(B)
- Refutation
- P(d);XR(G)
- Try
- Q(B);
- Threat
- DUALS(3)
- Vars
- P(d);SBLOCK,XR(G)::B(D)
- P(d);::QAB1(B)
- Refutation
- S(c);XQ(B)
- Try
- Q(B);
- Threat
- DUALS(4)
- Vars
- P(e);XB(I)::QAB1(B)
- Refutation
- P(d);XR(G)
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- P(e);XB(I)::QAR1(B)
- P(d);::QAR1(B)
- B(a);::QAR1(B)
- B(a);N_GUARD::S(F)
- S(c);::QAR1(B)
- Refutation
- P(d);XR(G)
- Try
- Actual
- Q(B);
- Vars
- P(d);OGATE,XS(F)::QAB(B)
- P(d);SBLOCK,XR(G)::B(D)
- P(e);N_GUARD,XB(I)::QAR1(B)
- P(f);SBLOCK,XP(H)::R1(G)
- S(c);N_GUARD::QAR1(B),XS(c)
- P(d);OGATE::QAR2(B),XP(d)
- S(g);N_GUARD,S_CUTB(a)::S(F)
- B(a);N_GUARD::QAR(B)
- B(a);N_GUARD::S(F),XB(a)
- B(a);N_GUARD::S(F)
- S(c);N_GUARD::QAR1(B)
- S(g);S_CUTB(a)::QAR(B)
- P(d);S_CUTB(a)::QAR(B)
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).