MESON Chess Problem Database
Problem Display
PID: 19062 (8/qQ5p/3pN2K/3pp1R1/4k3/7N/1b1PP3/8 w - - 0 1)
Heathcote, Godfrey
1st Prize, American Chess Bulletin (Block Threat Ty.), 1911
#2
7 + 7
| 15 | British Chess Magazine | 1912 |
| 2638 | White to Play | 1913 |
| 2681 | All Change Here! | 1919 |
| 3360 | Simple Two-move Themes | 1924 |
| 887 | Mate in Two Moves | 1931 |
| 5501 | Chess Cameos | 1936 |
| 78 | Bulletin Ouvrier des Echecs | 1952 |
| 5066 | Classic Chess Problems by Pioneer Composers | 1970 |
| 5424 | Versunkene Schatze | 1998 |
| 23 | Die Schwalbe | 2011 |
| 133 | The Problemist Supplement | 2012 |
SOLUTION
- SOUND
- Sets
- 1...Qg1
- 2.Qxh7#
- 1...Qf2
- 2.Sxf2#
- 1...Qe3
- 2.Qxh7#
- 1...Qd4
- 2.Qxh7#
- 1...Qc5
- 2.Qxh7#
- 1...Qb6
- 2.Qxh7#
- 1...Qb8
- 2.Sf2#
- 2.Qxh7#
- 1...Qa1
- 2.Sf2#
- 2.Qxh7#
- 1...Qa2
- 2.Sf2#
- 2.Qxh7#
- 1...Qa3
- 2.Sf2#
- 2.Qxh7#
- 1...Qa4
- 2.Sf2#
- 2.Qxh7#
- 1...Qa5
- 2.Sf2#
- 2.Qxh7#
- 1...Qa6
- 2.Sf2#
- 2.Qxh7#
- 1...Qxb7
- 2.Sf2#
- 1...Qa8
- 2.Sf2#
- 2.Qxh7#
- 1...Ba1
- 2.Qb1#
- 1...Bc1
- 2.Qb1#
- 1...Ba3
- 2.Qb1#
- 1...Bc3
- 2.Qb1#
- 1...Bd4
- 2.Qb1#
- 1...Qg1
- Tries
- 1.Kh5?
- 1...Qxb7
- 2.Sf2#
- 1...Qg1
- 2.Qxh7#
- 1...Qf2
- 2.Sxf2#
- 1...Qe3
- 2.Qxh7#
- 1...Qd4
- 2.Qxh7#
- 1...Qc5
- 2.Qxh7#
- 1...Qb6
- 2.Qxh7#
- 1...Qb8
- 2.Sf2#
- 2.Qxh7#
- 1...Qa1
- 2.Sf2#
- 2.Qxh7#
- 1...Qa2
- 2.Sf2#
- 2.Qxh7#
- 1...Qa3
- 2.Sf2#
- 2.Qxh7#
- 1...Qa4
- 2.Sf2#
- 2.Qxh7#
- 1...Qa5
- 2.Sf2#
- 2.Qxh7#
- 1...Qa6
- 2.Sf2#
- 2.Qxh7#
- 1...Qa8
- 2.Sf2#
- 2.Qxh7#
- 1...Ba1
- 2.Qb1#
- 1...Bc1
- 2.Qb1#
- 1...Ba3
- 2.Qb1#
- 1...Bc3
- 2.Qb1#
- 1...Bd4
- 2.Qb1#
- 1...h6!
- 1...Qxb7
- 1.Shf4?
- threat
- 2.Qxd5#
- 1...Qd4
- 2.Qxh7#
- 1...Qc5
- 2.Qxh7#
- 1...Qa2
- 2.Qxh7#
- 1...Qa5
- 2.Qxh7#
- 1...Qa8
- 2.Qxh7#
- 1...Qxb7!
- threat
- 1.Qb3?
- threat
- 2.Qc2#
- 2.Qd3#
- 2.Qf3#
- 1...Qf2
- 2.Sxf2#
- 2.Qc2#
- 2.Qd3#
- 1...Qe3
- 2.Qxe3#
- 1...Qd4
- 2.Qf3#
- 1...Qc5
- 2.Qd3#
- 2.Qf3#
- 1...Qa3
- 2.Sf2#
- 1...Qa4
- 2.Sf2#
- 2.Qd3#
- 2.Qe3#
- 2.Qf3#
- 1...Qa6
- 2.Sf2#
- 2.Qe3#
- 2.Qf3#
- 1...Qc7
- 2.Sf2#
- 2.Qd3#
- 2.Qe3#
- 2.Qf3#
- 1...Qf7
- 2.Qc2#
- 2.Qd3#
- 2.Qe3#
- 1...Bc3
- 2.Qc2#
- 2.Qb1#
- 1...d4
- 2.Sf2#
- 2.Qf3#
- 1...Qg7+!
- threat
- 1.Qb4+?
- 1...Qd4
- 2.Sf2#
- 1...Bd4
- 2.Sf2#
- 2.Qb1#
- 1...d4!
- 1...Qd4
- 1.Qxa7?
- threat
- 2.Sf2#
- 2.Qe3#
- 2.Qxh7#
- 2.d3#
- 1...Bd4
- 2.Qxh7#
- 1...d4!
- threat
- 1.Qf7?
- threat
- 2.Rg4#
- 2.Qf3#
- 2.Qf5#
- 1...d4
- 2.Qf3#
- 1...Qg1
- 2.Qf3#
- 2.Qf5#
- 2.Qxh7#
- 1...Qf2
- 2.Sxf2#
- 1...Qe3
- 2.Qf5#
- 2.Qxh7#
- 1...Qa3
- 2.Sf2#
- 2.Rg4#
- 2.Qf5#
- 2.Qxh7#
- 1...Qxf7!
- threat
- 1.Kh5?
- Keys
- 1.Sd4!
- threat
- 2.Rg4#
- 1...Kxd4
- 2.Qb4#
- 1...Qxd4
- 2.Qxh7#
- 1...Bxd4
- 2.Qb1#
- 1...exd4
- 2.Qxd5#
- threat
- 1.Sd4!
FEATURES
- Static
- TYPE = BLOCK_THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 10
- Sets
- Q(f);N_GUARD::QAB(G),XP(g)
- Q(f);N_GUARD::S(C),XQ(f)
- Q(f);N_GUARD,P_PINR(D)::QAB(G),XP(g)
- Q(f);N_GUARD,N_SPINP(c),XQ(G)::S(C)
- B(a);OGATE::QAB(G)
- Tries
- Try
- K(F);P-FLIGHT
- Vars
- Q(f);N_GUARD,N_SPINP(c),XQ(G)::S(C)
- Q(f);N_GUARD::QAB(G),XP(g)
- Q(f);N_GUARD::S(C),XQ(f)
- B(a);OGATE::QAB(G)
- Refutation
- P(g);
- Try
- S(C);
- Threat
- QAB1(G),XP(c)
- Vars
- Q(f);N_GUARD::QAB(G),XP(g)
- Refutation
- Q(f);N_SPINP(c),XQ(G)
- Try
- Q(G);N_PINP(c)
- Threat
- DUALS(3)
- Vars
- Q(f);N_GUARD,P_PINR(D)::QAR1(G),XQ(f)
- Q(f);::QAB1(G)
- Q(f);N_GUARD::S(C)
- Refutation
- Q(f);CHECK
- Try
- Q(G);CHECK,N_PINP(c)
- Vars
- Q(f);P_SPINQ(f)::S(C)
- Refutation
- P(c);P_SPINP(c)
- Try
- Q(G);N_PINP(c),XQ(f)
- Threat
- DUALS(4)
- Vars
- B(a);::QAB(G),XP(g)
- Refutation
- P(c);
- Try
- Q(G);N_PINP(c)
- Threat
- DUALS(3)
- Vars
- P(c);::QAB1(G)
- Q(f);N_GUARD::S(C),XQ(f)
- Refutation
- Q(f);XQ(G)
- Try
- Actual
- S(E);
- Threat
- R(D)
- Vars
- K(b);N_SPINP(c),OGATEB,P-FLIGHT,XS(E)::QAR2(G)
- Q(f);N_GUARD,SBLOCK,XS(E)::QAB(G),XP(g)
- B(a);OGATE,SBLOCK,XS(E)::QAB(G)
- P(d);XS(E)::QAB1(G),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).