MESON Chess Problem Database
Problem Display
PID: 268226 (7Q/B7/2N1n1R1/3k4/1Rn1NP2/6K1/8/8 w - - 0 1)
Heath, AW
Sunday Referee, 1929
(First published on Sun Jan 20 1929)
#2
8 + 3
| 15239 | Valois Notebooks | 2023 |
SOLUTION
- SOUND
- Sets
- 1...Sb2
- 2.Se7#
- 1...Sd2
- 2.Se7#
- 1...Sa3
- 2.Se7#
- 1...Se3
- 2.Se7#
- 1...Sa5
- 2.Se7#
- 1...Se5
- 2.Se7#
- 1...Sb6
- 2.Se7#
- 1...Sd6
- 2.Se7#
- 1...Sd4
- 2.Sc3#
- 2.Qxd4#
- 1...Sxf4
- 2.Sc3#
- 2.Qd4#
- 1...Sc5
- 2.Sc3#
- 2.Qd4#
- 1...Sg5
- 2.Sc3#
- 2.Qd4#
- 1...Sc7
- 2.Sc3#
- 2.Qd4#
- 1...Sg7
- 2.Sc3#
- 1...Sd8
- 2.Sc3#
- 2.Qd4#
- 1...Sf8
- 2.Sc3#
- 2.Qd4#
- 1...Sb2
- Tries
- 1.Sd4?
- threat
- 2.Qa8#
- 1...Sxd4
- 2.Sc3#
- 2.Qxd4#
- 1...Sxf4
- 2.Sc3#
- 1...Sa5
- 2.Qe5#
- 1...Se5
- 2.Qxe5#
- 1...Sb6
- 2.Qe5#
- 1...Sd6
- 2.Sc3#
- 2.Sf6#
- 2.Qe5#
- 1...Sc5
- 2.Sc3#
- 1...Sc7
- 2.Sc3#
- 1...Sd8
- 2.Sc3#
- 1...Sf8
- 2.Sc3#
- 1...Kxe4!
- threat
- 1.Sb8?
- 1...Sxf4
- 2.Sc3#
- 2.Qd4#
- 1...Sb2
- 2.Qe5#
- 1...Sd2
- 2.Qe5#
- 1...Sa3
- 2.Qe5#
- 1...Se3
- 2.Qe5#
- 1...Sa5
- 2.Qe5#
- 1...Se5
- 2.Qxe5#
- 1...Sb6
- 2.Qe5#
- 1...Sd6
- 2.Sc3#
- 2.Sf6#
- 2.Qe5#
- 1...Sd4
- 2.Sc3#
- 2.Qxd4#
- 1...Sc5
- 2.Sc3#
- 1...Sg5
- 2.Sc3#
- 2.Qd4#
- 1...Sc7
- 2.Sc3#
- 2.Qd4#
- 1...Sg7
- 2.Sc3#
- 1...Sd8
- 2.Sc3#
- 2.Qd4#
- 1...Sf8
- 2.Sc3#
- 2.Qd4#
- 1...Kxe4!
- 1...Sxf4
- 1.Sd8?
- 1...Sxf4
- 2.Sc3#
- 2.Qd4#
- 1...Sxd8
- 2.Sc3#
- 2.Qd4#
- 1...Sb2
- 2.Qe5#
- 1...Sd2
- 2.Qe5#
- 1...Sa3
- 2.Qe5#
- 1...Se3
- 2.Qe5#
- 1...Sa5
- 2.Qe5#
- 1...Se5
- 2.Qxe5#
- 1...Sb6
- 2.Qe5#
- 1...Sd6
- 2.Sc3#
- 2.Sf6#
- 2.Qe5#
- 1...Sd4
- 2.Sc3#
- 2.Qxd4#
- 1...Sc5
- 2.Sc3#
- 1...Sg5
- 2.Sc3#
- 2.Qd4#
- 1...Sc7
- 2.Sc3#
- 2.Qd4#
- 1...Sg7
- 2.Sc3#
- 1...Sf8
- 2.Sc3#
- 2.Qd4#
- 1...Kxe4!
- 1...Sxf4
- 1.Rxc4?
- 1...Sxf4
- 2.Rd4#
- 2.Qd4#
- 1...Sd4
- 2.Rxd4#
- 2.Qxd4#
- 1...Sc5
- 2.Rd4#
- 2.Qd4#
- 1...Sg5
- 2.Rd4#
- 2.Qd4#
- 1...Sc7
- 2.Rd4#
- 2.Qd4#
- 1...Sg7
- 2.Rd4#
- 1...Sd8
- 2.Rd4#
- 2.Qd4#
- 1...Sf8
- 2.Rd4#
- 2.Qd4#
- 1...Kxc4!
- 1...Sxf4
- 1.Rxe6?
- 1...Sd6
- 2.Rxd6#
- 1...Sb2
- 2.Rd6#
- 2.Qe5#
- 1...Sd2
- 2.Rd6#
- 2.Qe5#
- 1...Sa3
- 2.Rd6#
- 2.Qe5#
- 1...Se3
- 2.Rd6#
- 2.Qe5#
- 1...Sa5
- 2.Rd6#
- 2.Qe5#
- 1...Se5
- 2.Rd6#
- 2.Qxe5#
- 1...Sb6
- 2.Rd6#
- 2.Qe5#
- 1...Kxe6!
- 1...Sd6
- 1.Qd4+?
- 1...Sxd4
- 2.Sc3#
- 1...Kxc6!
- 1...Sxd4
- 1.Qe5+?
- 1...Sxe5
- 2.Se7#
- 1...Kxc6!
- 1...Sxe5
- 1.Qg7?
- 1...Kxc6
- 2.Qb7#
- 1...Sxf4
- 2.Sc3#
- 2.Qd4#
- 1...Sxg7
- 2.Sc3#
- 1...Sb2
- 2.Se7#
- 2.Qd7#
- 1...Sd2
- 2.Se7#
- 2.Qd7#
- 1...Sa3
- 2.Se7#
- 2.Qd7#
- 1...Se3
- 2.Se7#
- 2.Qd7#
- 1...Sa5
- 2.Se7#
- 2.Qd7#
- 1...Se5
- 2.Se7#
- 1...Sb6
- 2.Se7#
- 1...Sd6
- 2.Se7#
- 1...Sd4
- 2.Sc3#
- 2.Qxd4#
- 1...Sc5
- 2.Sc3#
- 2.Qd4#
- 1...Sg5
- 2.Sc3#
- 2.Qd4#
- 1...Sc7
- 2.Sc3#
- 2.Qd4#
- 1...Sd8
- 2.Sc3#
- 2.Qd4#
- 1...Sf8
- 2.Sc3#
- 2.Qd4#
- 1...Kxe4!
- 1...Kxc6
- 1.Qh1?
- threat
- 2.Se7#
- 1...Sxf4
- 2.Sc3#
- 2.Rb5#
- 1...Sc5
- 2.Sc3#
- 2.Sxc5#
- 1...Kxc6!
- threat
- 1.Qa8?
- threat
- 2.Sd4#
- 2.Sa5#
- 2.Se5#
- 2.Se7#
- 2.Sb8#
- 2.Sd8#
- 1...Sxf4
- 2.Sc3#
- 1...Sa5
- 2.Sxa5#
- 2.Se7#
- 1...Se5
- 2.Sxe5#
- 2.Se7#
- 1...Sb6
- 2.Se7#
- 1...Sd6
- 2.Sc3#
- 2.Sf6#
- 2.Se7#
- 1...Sd4
- 2.Sc3#
- 2.Sxd4#
- 2.Se7#
- 1...Sc5
- 2.Sc3#
- 1...Sc7
- 2.Sc3#
- 2.Se7#
- 1...Sd8
- 2.Sc3#
- 2.Se7#
- 2.Sxd8#
- 1...Kxe4!
- threat
- 1.Qb8?
- 1...Kxc6
- 2.Qb7#
- 1...Sxf4
- 2.Sc3#
- 1...Sb2
- 2.Se7#
- 2.Qd6#
- 1...Sd2
- 2.Se7#
- 2.Qd6#
- 1...Sa3
- 2.Se7#
- 2.Qd6#
- 1...Se3
- 2.Se7#
- 2.Qd6#
- 1...Sa5
- 2.Se7#
- 2.Qd6#
- 1...Se5
- 2.Se7#
- 2.Qd6#
- 1...Sb6
- 2.Se7#
- 2.Qd6#
- 1...Sd6
- 2.Se7#
- 2.Qxd6#
- 1...Sd4
- 2.Sc3#
- 1...Sc5
- 2.Sc3#
- 1...Sg5
- 2.Sc3#
- 1...Sc7
- 2.Sc3#
- 1...Sg7
- 2.Sc3#
- 1...Sd8
- 2.Sc3#
- 1...Sf8
- 2.Sc3#
- 1...Kxe4!
- 1...Kxc6
- 1.Qc8?
- threat
- 2.Qxe6#
- 1...Sxf4
- 2.Sc3#
- 1...Sd6
- 2.Sc3#
- 2.Sf6#
- 2.Se7#
- 1...Sd4
- 2.Sc3#
- 1...Sc5
- 2.Sc3#
- 1...Sg5
- 2.Sc3#
- 1...Sc7
- 2.Sc3#
- 1...Sg7
- 2.Sc3#
- 1...Sd8
- 2.Sc3#
- 1...Sf8
- 2.Sc3#
- 1...Kxe4!
- threat
- 1.Qe8?
- threat
- 2.Qxe6#
- 1...Sxf4
- 2.Sc3#
- 2.Rb5#
- 1...Sd6
- 2.Sc3#
- 2.Sf6#
- 2.Se7#
- 1...Sd4
- 2.Sc3#
- 1...Sc5
- 2.Sc3#
- 1...Sg5
- 2.Sc3#
- 2.Rb5#
- 1...Sc7
- 2.Sc3#
- 1...Sg7
- 2.Sc3#
- 2.Rb5#
- 1...Sd8
- 2.Sc3#
- 2.Rb5#
- 1...Sf8
- 2.Sc3#
- 2.Rb5#
- 1...Kxe4!
- threat
- 1.Sd4?
- Keys
- 1.Qh7!
- 1...Kxe4
- 2.Rg5#
- 1...Kxc6
- 2.Qb7#
- 1...Sxf4
- 2.Sc3#
- 1...Sb2
- 2.Se7#
- 2.Qd7#
- 1...Sd2
- 2.Se7#
- 2.Qd7#
- 1...Sa3
- 2.Se7#
- 2.Qd7#
- 1...Se3
- 2.Se7#
- 2.Qd7#
- 1...Sa5
- 2.Se7#
- 2.Qd7#
- 1...Se5
- 2.Se7#
- 1...Sb6
- 2.Se7#
- 1...Sd6
- 2.Se7#
- 1...Sd4
- 2.Sc3#
- 1...Sc5
- 2.Sc3#
- 1...Sg5
- 2.Sc3#
- 1...Sc7
- 2.Sc3#
- 1...Sg7
- 2.Sc3#
- 1...Sd8
- 2.Sc3#
- 1...Sf8
- 2.Sc3#
- 1...Kxe4
- 1.Qh7!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 9
- REMOVED MATES = 5
- Sets
- S(a);::S(E)
- S(c);::S(C)
- Tries
- Try
- S(E);
- Threat
- QAB(H)
- Vars
- S(c);XP(D)::S(C)
- S(a);N_GUARD::QAR1(H)
- S(a);N_GUARD::QAR1(H),XS(a)
- S(c);::S(C)
- Refutation
- K(b);S_FLIGHT,XS(C)
- Try
- S(E);
- Vars
- S(a);N_GUARD::QAR1(H)
- S(a);N_GUARD::QAR1(H),XS(a)
- S(c);::S(C)
- Refutation
- K(b);P_SPINS(a),S_FLIGHT,XS(C)
- Try
- S(E);
- Vars
- S(a);N_GUARD::QAR1(H)
- S(a);N_GUARD::QAR1(H),XS(a)
- S(c);::S(C)
- Refutation
- K(b);P_SPINS(a),S_FLIGHT,XS(C)
- Try
- R(B);XS(a)
- Vars
- S(c);N_GUARD::R1(B)
- Refutation
- K(b);S_FLIGHT,XR(B)
- Try
- R(F);XS(c)
- Vars
- S(a);N_GUARD::R1(F),XS(a)
- Refutation
- K(b);S_FLIGHT,XR(F)
- Try
- Q(H);CHECK
- Vars
- S(c);XQ(H)::S(C)
- Refutation
- K(b);P_SPINS(c),S_FLIGHT,XS(E)
- Try
- Q(H);CHECK
- Vars
- S(a);XQ(H)::S(E)
- Refutation
- K(b);P_SPINS(c),S_FLIGHT,XS(E)
- Try
- Q(H);
- Vars
- K(b);OGATEB,P_SPINS(c),S_FLIGHT,XS(E)::QAB1(H)
- S(c);XQ(H)::S(C)
- S(a);::S(E)
- Refutation
- K(b);P_SPINS(a),S_FLIGHT,XS(C)
- Try
- Q(H);
- Threat
- S(E)
- Refutation
- K(b);P_SPINS(c),S_FLIGHT,XS(E)
- Try
- Q(H);
- Threat
- DUALS(6)
- Vars
- S(c);XP(D)::S(C)
- S(a);::QAB(H)+S(E),DCHECK
- S(c);::S(C)
- Refutation
- K(b);P_SPINS(a),S_FLIGHT,XS(C)
- Try
- Q(H);
- Vars
- K(b);OGATEB,P_SPINS(c),S_FLIGHT,XS(E)::QAB1(H)
- S(c);XP(D)::S(C)
- S(c);::S(C)
- Refutation
- K(b);P_SPINS(a),S_FLIGHT,XS(C)
- Try
- Q(H);
- Threat
- QAB1(H),XS(c)
- Vars
- S(c);XP(D)::S(C)
- S(c);::S(C)
- Refutation
- K(b);P_SPINS(a),S_FLIGHT,XS(C)
- Try
- Q(H);
- Threat
- QAB1(H),XS(c)
- Vars
- S(c);::S(C)
- Refutation
- K(b);P_SPINS(a),S_FLIGHT,XS(C)
- Try
- Actual
- Q(H);
- Vars
- K(b);N_GUARD,P_SPINS(a),S_CUTS(c),S_FLIGHT,XS(C)::QAB(H)+R(F)
- K(b);OGATEB,P_SPINS(c),S_FLIGHT,XS(E)::QAB1(H)
- S(c);XP(D)::S(C)
- S(a);::S(E)
- S(c);::S(C)
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