MESON Chess Problem Database
Problem Display
PID: 21079 (1nr5/R7/p1kN1R2/3N4/3p4/3Qn3/2P5/K6B w - - 0 1)
Heathcote, Godfrey
Good Companions (February), 1916
#2
8 + 6
| 15 | British Chess Magazine | 1916 |
| 3132 | The Good Companion Two-Mover | 1922 |
| 15529 | Karl Junker: Ausgewahlte Schachaufgaben | 1978 |
SOLUTION
- SOUND
- Sets
- 1...Kc5
- 2.Sb7#
- 1...Rc7
- 2.Rxc7#
- 1...Rd8
- 2.Rc7#
- 1...Re8
- 2.Rc7#
- 1...Rf8
- 2.Rc7#
- 1...Rg8
- 2.Rc7#
- 1...Rh8
- 2.Rc7#
- 1...Sd1
- 2.Qc4#
- 1...Sf1
- 2.Qc4#
- 1...Sxc2+
- 2.Qxc2#
- 1...Sg2
- 2.Qc4#
- 1...Sc4
- 2.Qxc4#
- 1...Sg4
- 2.Qc4#
- 1...Sf5
- 2.Qc4#
- 1...a5
- 2.Qb5#
- 1...Kc5
- Tries
- 1.Rxa6+?
- 1...Kc5
- 2.Sb7#
- 2.Qb5#
- 2.Qa3#
- 1...Sxa6
- 2.Qb5#
- 1...Kd7!
- 1...Kc5
- 1.Re7?
- threat
- 2.Sb7#
- 1...Sxc2+
- 2.Qxc2#
- 1...Kc5
- 2.Sb7#
- 1...Sg2
- 2.Qc4#
- 1...Rc7
- 2.Rxc7#
- 1...Rd8
- 2.Rc7#
- 1...Rf8
- 2.Rc7#
- 1...Sc4
- 2.Qxc4#
- 1...Sg4
- 2.Qc4#
- 1...Sf5
- 2.Qc4#
- 1...Sd7!
- threat
- 1.Raf7?
- threat
- 2.Sb7#
- 1...Sxc2+
- 2.Qxc2#
- 1...Kc5
- 2.Sb7#
- 1...Sg2
- 2.Qc4#
- 1...Rc7
- 2.Rxc7#
- 1...Rd8
- 2.Rc7#
- 1...Re8
- 2.Rc7#
- 1...Sc4
- 2.Qxc4#
- 1...Sg4
- 2.Qc4#
- 1...Sf5
- 2.Qc4#
- 1...Sd7!
- threat
- 1.Rg7?
- threat
- 2.Sb7#
- 1...Sxc2+
- 2.Qxc2#
- 1...Kc5
- 2.Sb7#
- 1...Sg2
- 2.Qc4#
- 1...Rc7
- 2.Rxc7#
- 1...Rd8
- 2.Rc7#
- 1...Re8
- 2.Rc7#
- 1...Rf8
- 2.Rc7#
- 1...Sc4
- 2.Qxc4#
- 1...Sg4
- 2.Qc4#
- 1...Sf5
- 2.Qc4#
- 1...Sd7!
- threat
- 1.Rh7?
- threat
- 2.Sb7#
- 1...Sxc2+
- 2.Qxc2#
- 1...Kc5
- 2.Sb7#
- 1...Sg2
- 2.Qc4#
- 1...Rc7
- 2.Rxc7#
- 1...Rd8
- 2.Rc7#
- 1...Re8
- 2.Rc7#
- 1...Rf8
- 2.Rc7#
- 1...Sc4
- 2.Qxc4#
- 1...Sg4
- 2.Qc4#
- 1...Sf5
- 2.Qc4#
- 1...Sd7!
- threat
- 1.Qxa6+?
- 1...Kc5
- 2.Sb7#
- 2.Qb5#
- 2.Qb6#
- 1...Sxa6!
- 1...Kc5
- 1.Qc3+?
- 1...Sc4
- 2.Qxc4#
- 1...dxc3!
- 1...Sc4
- 1.Qxd4?
- threat
- 2.Sxe3#
- 2.Sb4#
- 2.Se7#
- 2.Qb6#
- 1...Sxd5
- 2.Bxd5#
- 1...Rc7
- 2.Rxc7#
- 1...Sd7
- 2.Sxe3#
- 2.Sb4#
- 2.Se7#
- 1...Re8
- 2.Sb4#
- 2.Se7#
- 2.Rc7#
- 2.Qb6#
- 1...Rg8
- 2.Sb4#
- 2.Se7#
- 2.Rc7#
- 2.Qb6#
- 1...Rh8
- 2.Sb4#
- 2.Se7#
- 2.Rc7#
- 2.Qb6#
- 1...Sd1
- 2.Sc3#
- 2.Se3#
- 2.Sb4#
- 2.Sf4#
- 2.Sb6#
- 2.Se7#
- 2.Qb6#
- 2.Qc4#
- 1...Sf1
- 2.Sc3#
- 2.Se3#
- 2.Sb4#
- 2.Sf4#
- 2.Sb6#
- 2.Se7#
- 2.Qc3#
- 2.Qb6#
- 2.Qc4#
- 1...Sg2
- 2.Sb4#
- 2.Se7#
- 2.Qc4#
- 1...Sc4
- 2.Sc3#
- 2.Se3#
- 2.Sb4#
- 2.Sf4#
- 2.Sb6#
- 2.Se7#
- 2.Qxc4#
- 1...Sg4
- 2.Sc3#
- 2.Se3#
- 2.Sb4#
- 2.Sf4#
- 2.Sb6#
- 2.Se7#
- 2.Qc3#
- 2.Qb6#
- 2.Qc4#
- 1...Sf5
- 2.Sc3#
- 2.Se3#
- 2.Sb4#
- 2.Sf4#
- 2.Sb6#
- 2.Se7#
- 2.Qc3#
- 2.Qb6#
- 2.Qc4#
- 1...Sxc2+!
- threat
- 1.Rxa6+?
- Keys
- 1.Re6!
- 1...Sxc2+
- 2.Qxc2#
- 1...Kc5
- 2.Sb7#
- 1...Sxd5
- 2.Se4#
- 1...Rc7
- 2.Rxc7#
- 1...Sg2
- 2.Qc4#
- 1...Sd7
- 2.Sb7#
- 1...Rd8
- 2.Rc7#
- 1...Re8
- 2.Rc7#
- 1...Rf8
- 2.Rc7#
- 1...Rg8
- 2.Rc7#
- 1...Rh8
- 2.Rc7#
- 1...Sd1
- 2.Qc4#
- 1...Sf1
- 2.Qc4#
- 1...Sc4
- 2.Qxc4#
- 1...Sg4
- 2.Qc4#
- 1...Sf5
- 2.Qc4#
- 1...a5
- 2.Qb5#
- 1...Sxc2+
- 1.Re6!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- K(d);P-FLIGHT::S(F)
- R(f);N_GUARD::R1(H),XR(f)
- R(f);N_GUARD::R1(H)
- S(a);N_GUARD::QAR2(D)
- S(a);CHECK,OGATE,XP(C)::QAR(D),XS(a)
- S(a);N_GUARD::QAR2(D),XS(a)
- P(c);N_GUARD::QAB1(D)
- Tries
- Try
- R(H);CHECK,XP(c)
- Vars
- S(e);XR(H)::QAB1(D)
- Refutation
- K(d);S_FLIGHT
- Try
- R(H);
- Threat
- R(G)+S(F)
- Vars
- S(a);CHECK,OGATE,XP(C)::QAR(D),XS(a)
- K(d);P-FLIGHT::S(F)
- S(a);N_GUARD::QAR2(D)
- R(f);N_GUARD::R1(H),XR(f)
- R(f);N_GUARD::R1(H)
- S(a);N_GUARD::QAR2(D),XS(a)
- Refutation
- S(e);
- Try
- R(H);
- Threat
- R(G)+S(F)
- Vars
- S(a);CHECK,OGATE,XP(C)::QAR(D),XS(a)
- K(d);P-FLIGHT::S(F)
- S(a);N_GUARD::QAR2(D)
- R(f);N_GUARD::R1(H),XR(f)
- R(f);N_GUARD::R1(H)
- S(a);N_GUARD::QAR2(D),XS(a)
- Refutation
- S(e);
- Try
- R(H);
- Threat
- R(G)+S(F)
- Vars
- S(a);CHECK,OGATE,XP(C)::QAR(D),XS(a)
- K(d);P-FLIGHT::S(F)
- S(a);N_GUARD::QAR2(D)
- R(f);N_GUARD::R1(H),XR(f)
- R(f);N_GUARD::R1(H)
- S(a);N_GUARD::QAR2(D),XS(a)
- Refutation
- S(e);
- Try
- R(H);
- Threat
- R(G)+S(F)
- Vars
- S(a);CHECK,OGATE,XP(C)::QAR(D),XS(a)
- K(d);P-FLIGHT::S(F)
- S(a);N_GUARD::QAR2(D)
- R(f);N_GUARD::R1(H),XR(f)
- R(f);N_GUARD::R1(H)
- S(a);N_GUARD::QAR2(D),XS(a)
- Refutation
- S(e);
- Try
- Q(D);CHECK,XP(c)
- Refutation
- S(e);XQ(D)
- Try
- Q(D);CHECK
- Vars
- S(a);N_GUARD,P_SPINS(a)::QAR2(D),XS(a)
- Refutation
- P(b);XQ(D)
- Try
- Q(D);XP(b)
- Threat
- DUALS(4)
- Vars
- S(a);OGATE,P_SPINS(a),XS(E)::B(B),XS(a)
- R(f);N_GUARD::R1(H),XR(f)
- Refutation
- S(a);CHECK,XP(C)
- Try
- Actual
- R(G);
- Vars
- S(a);CHECK,OGATE,XP(C)::QAR(D),XS(a)
- K(d);P-FLIGHT::S(F)
- S(a);P_SPINS(a),SBLOCK,XS(E)::R(G)+S(F)
- R(f);N_GUARD::R1(H),XR(f)
- S(a);N_GUARD::QAR2(D)
- S(e);SBLOCK::R(G)+S(F)
- R(f);N_GUARD::R1(H)
- S(a);N_GUARD::QAR2(D),XS(a)
- P(c);N_GUARD::QAB1(D)
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).