MESON Chess Problem Database
Problem Display
PID: 65295 (1N4b1/6p1/N1pp2Q1/3kpP1K/2pb2RP/7p/B6B/8 w - - 0 1)
Heydon, Joseph Kentigern
3rd HM., Good Companions (April Complete Blocks), 1922
#2
9 + 9
| 3132 | The Good Companion Two-Mover | 1922 |
SOLUTION
- SOUND
- Sets
- 1...Ba1
- 2.Bxc4#
- 1...Bg1
- 2.Bxc4#
- 1...Bb2
- 2.Bxc4#
- 1...Bf2
- 2.Bxc4#
- 1...Bc3
- 2.Bxc4#
- 1...Be3
- 2.Bxc4#
- 1...Bc5
- 2.Sc7#
- 2.Bxc4#
- 1...Bb6
- 2.Bxc4#
- 1...Ba7
- 2.Bxc4#
- 1...Be6
- 2.Qxe6#
- 1...Bf7
- 2.Qxf7#
- 1...Bh7
- 2.Qf7#
- 2.Qe6#
- 1...e4
- 2.Qxd6#
- 1...c5
- 2.Sc7#
- 1...Ba1
- Tries
- 1.Kg5?
- 1...Ba1
- 2.Bxc4#
- 1...Bg1
- 2.Bxc4#
- 1...Bb2
- 2.Bxc4#
- 1...Bf2
- 2.Bxc4#
- 1...Bc3
- 2.Bxc4#
- 1...Bc5
- 2.Sc7#
- 2.Bxc4#
- 1...Bb6
- 2.Bxc4#
- 1...Ba7
- 2.Bxc4#
- 1...Be6
- 2.Qxe6#
- 1...Bf7
- 2.Qxf7#
- 1...Bh7
- 2.Qf7#
- 2.Qe6#
- 1...e4
- 2.Qxd6#
- 1...c5
- 2.Sc7#
- 1...Be3+!
- 1...Ba1
- 1.Sxc6?
- threat
- 2.Scb4#
- 2.Se7#
- 1...Bc3
- 2.Se7#
- 1...Bc5
- 2.Se7#
- 1...Kxc6!
- threat
- 1.Sd7?
- threat
- 2.Sb4#
- 2.Sc7#
- 1...Bc3
- 2.Sc7#
- 2.Sb6#
- 2.Bxc4#
- 1...Bc5
- 2.Sc7#
- 2.Bxc4#
- 1...Bb6
- 2.Sb4#
- 2.Sxb6#
- 2.Bxc4#
- 1...c5!
- threat
- 1.Bb3?
- 1...Ba1
- 2.Bxc4#
- 1...Bg1
- 2.Bxc4#
- 1...Bb2
- 2.Bxc4#
- 1...Bf2
- 2.Bxc4#
- 1...Bc3
- 2.Bxc4#
- 1...Be3
- 2.Bxc4#
- 1...Bc5
- 2.Sc7#
- 2.Bxc4#
- 1...Bb6
- 2.Bxc4#
- 1...Ba7
- 2.Bxc4#
- 1...Be6
- 2.Qxe6#
- 1...Bf7
- 2.Qxf7#
- 1...Bh7
- 2.Qf7#
- 2.Qe6#
- 1...e4
- 2.Qxd6#
- 1...c5
- 2.Sc7#
- 1...cxb3!
- 1...Ba1
- 1.Bg3?
- 1...Ba1
- 2.Bxc4#
- 1...Bg1
- 2.Bxc4#
- 1...Bb2
- 2.Bxc4#
- 1...Bf2
- 2.Bxc4#
- 1...Bc3
- 2.Bxc4#
- 1...Be3
- 2.Bxc4#
- 1...Bc5
- 2.Sc7#
- 2.Bxc4#
- 1...Bb6
- 2.Bxc4#
- 1...Ba7
- 2.Bxc4#
- 1...Be6
- 2.Qxe6#
- 1...Bf7
- 2.Qxf7#
- 1...Bh7
- 2.Qf7#
- 2.Qe6#
- 1...e4
- 2.Qxd6#
- 1...c5
- 2.Sc7#
- 1...h2!
- 1...Ba1
- 1.Qe8?
- threat
- 2.Qxc6#
- 2.Qxg8#
- 1...Bf7+
- 2.Qxf7#
- 1...Be6
- 2.Qxc6#
- 2.Qxe6#
- 1...Bh7
- 2.Qxc6#
- 2.Qf7#
- 2.Qe6#
- 1...c5
- 2.Sc7#
- 2.Qc6#
- 2.Qxg8#
- 1...g6+!
- threat
- 1.Qxg7?
- threat
- 2.Qxg8#
- 1...Bf7+
- 2.Qxf7#
- 1...Bh7
- 2.Qf7#
- 1...Be6!
- threat
- 1.Kg5?
- Keys
- 1.f6!
- 1...Ke6
- 2.Sc7#
- 1...gxf6
- 2.Qxg8#
- 1...Ba1
- 2.Bxc4#
- 1...Bg1
- 2.Bxc4#
- 1...Bb2
- 2.Bxc4#
- 1...Bf2
- 2.Bxc4#
- 1...Bc3
- 2.Bxc4#
- 1...Be3
- 2.Bxc4#
- 1...Bc5
- 2.Sc7#
- 2.Bxc4#
- 1...Bb6
- 2.Bxc4#
- 1...Ba7
- 2.Bxc4#
- 1...Be6
- 2.Qe4#
- 1...Bf7
- 2.Qxf7#
- 1...Bh7
- 2.Qf7#
- 1...e4
- 2.Qxe4#
- 1...c5
- 2.Sc7#
- 1...Ke6
- 1.f6!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 2
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- B(c);::B(A),XP(b)
- B(i);N_GUARD::QAB1(H),XB(i)
- B(i);N_GUARD,P_PINQ(H)::QAB(H),XB(i)
- P(e);::QAR1(H),XP(g)
- P(f);SBLOCK::S(G)
- Tries
- Try
- K(F);P-FLIGHT
- Vars
- B(c);::B(A),XP(b)
- B(i);N_GUARD::QAB1(H),XB(i)
- B(i);N_GUARD::QAB(H),XB(i)
- P(e);::QAR1(H),XP(g)
- P(f);SBLOCK::S(G)
- Refutation
- B(c);CHECK
- Try
- S(I);XP(f)
- Threat
- DUALS(2)
- Vars
- B(c);::S(I)
- Refutation
- K(d);N_SPINP(b),P_SPINP(g),S_FLIGHT,XS(I)
- Try
- S(I);
- Threat
- DUALS(2)
- Refutation
- P(f);
- Try
- B(A);
- Vars
- B(c);::B(A),XP(b)
- B(i);N_GUARD::QAB1(H),XB(i)
- B(i);N_GUARD,P_PINQ(H)::QAB(H),XB(i)
- P(e);::QAR1(H),XP(g)
- P(f);SBLOCK::S(G)
- Refutation
- P(b);N_SPINP(b),XB(A)
- Try
- B(B);
- Vars
- B(c);::B(A),XP(b)
- B(i);N_GUARD::QAB1(H),XB(i)
- B(i);N_GUARD,P_PINQ(H)::QAB(H),XB(i)
- P(e);::QAR1(H),XP(g)
- P(f);SBLOCK::S(G)
- Refutation
- P(a);
- Try
- Q(H);
- Threat
- DUALS(2)
- Vars
- B(i);CHECK,N_GUARD::QAB(H),XB(i)
- Refutation
- P(h);CHECK
- Try
- Q(H);XP(h)
- Threat
- QAB(H),XB(i)
- Vars
- B(i);CHECK,N_GUARD::QAB(H),XB(i)
- B(i);N_GUARD::QAB(H)
- Refutation
- B(i);
- Try
- Actual
- P(E);
- Vars
- K(d);S_FLIGHT::S(G)
- P(h);OGATE,XP(E)::QAB(H),XB(i)
- B(c);::B(A),XP(b)
- B(i);SBLOCK::QAB1(H)
- B(i);N_GUARD,P_PINQ(H)::QAB(H),XB(i)
- B(i);N_GUARD::QAB(H)
- P(e);::QAB1(H),XP(e)
- P(f);SBLOCK::S(G)
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).