MESON Chess Problem Database
Problem Display
PID: 268751 (QB2b3/7r/3N3p/R4N2/1q3k1K/3n1p2/3Pn2P/8 w - - 0 1)
Smith, James Alfred John
Sunday Referee, 1930
(First published on Sun May 4 1930)
#2
8 + 8
| 15239 | Valois Notebooks | 2023 |
SOLUTION
- SOUND
- Sets
- 1...Qxd2
- 2.Qe4#
- 1...Qa3
- 2.Qe4#
- 1...Qc3
- 2.Qe4#
- 1...Qxa5
- 2.Qe4#
- 1...Qc5
- 2.Qe4#
- 1...Qb1
- 2.Qe4#
- 1...Qb2
- 2.Qe4#
- 1...Qb3
- 2.Qe4#
- 1...Qe4
- 2.Qxe4#
- 1...Qb5
- 2.Qe4#
- 1...Qb6
- 2.Qe4#
- 1...Qxb8
- 2.Qe4#
- 1...Sg3
- 2.hxg3#
- 1...Sd4
- 2.Qe4#
- 1...Qxd2
- Tries
- 1.Sd4?
- threat
- 2.Se6#
- 2.Rf5#
- 2.Qxf3#
- 2.Qe4#
- 1...Qxd2
- 2.Qxf3#
- 2.Qe4#
- 1...Qxa5
- 2.Qe4#
- 1...Qxd6
- 2.Se6#
- 2.Rf5#
- 2.Qxf3#
- 1...Qxd4
- 2.Rf5#
- 1...Sxd4
- 2.Qe4#
- 1...Qc5
- 2.Qe4#
- 1...Qb5
- 2.Qe4#
- 1...Bb5
- 2.Qe4#
- 1...Qb3
- 2.Rf5#
- 2.Qxf3#
- 2.Qe4#
- 1...Qc4
- 2.Rf5#
- 2.Qxf3#
- 2.Qe4#
- 1...Qb7
- 2.Se6#
- 2.Rf5#
- 1...Rb7
- 2.Se6#
- 2.Rf5#
- 1...Re7
- 2.Rf5#
- 2.Qxf3#
- 1...Rf7
- 2.Se6#
- 2.Qxf3#
- 2.Qe4#
- 1...Bh5
- 2.Se6#
- 2.Rf5#
- 2.Qe4#
- 1...Bc6
- 2.Se6#
- 2.Rf5#
- 1...Bg6
- 2.Se6#
- 2.Qxf3#
- 1...Bd7
- 2.Qxf3#
- 2.Qe4#
- 1...Bf7
- 2.Rf5#
- 2.Qxf3#
- 2.Qe4#
- 1...Sg1
- 2.Se6#
- 2.Rf5#
- 2.Qe4#
- 1...Sc3
- 2.Se6#
- 2.Rf5#
- 2.Qxf3#
- 1...Sg3
- 2.Se6#
- 2.Qxf3#
- 2.hxg3#
- 1...Se1
- 2.Se6#
- 2.Rf5#
- 2.Qe4#
- 1...Sf2
- 2.Se6#
- 2.Rf5#
- 2.Qxf3#
- 1...Se5
- 2.Se6#
- 2.Qe4#
- 1...f2
- 2.Sxe2#
- 2.Se6#
- 2.Rf5#
- 2.Qf3#
- 2.Qe4#
- 1...Sc5!
- threat
- 1.Sg7?
- threat
- 2.Se6#
- 2.Rf5#
- 1...Qxd2
- 2.Qe4#
- 1...Qxa5
- 2.Qe4#
- 1...Rxg7
- 2.Rf5#
- 1...Qc5
- 2.Qe4#
- 1...Qb5
- 2.Qe4#
- 1...Sc5
- 2.Sb5#
- 1...Qb3
- 2.Rf5#
- 2.Qe4#
- 1...Qc4
- 2.Rf5#
- 1...Qe4
- 2.Qxe4#
- 1...Bg6
- 2.Se6#
- 1...Bd7
- 2.Sh5#
- 1...Bf7
- 2.Rf5#
- 1...Sg3
- 2.Se6#
- 2.hxg3#
- 1...Sd4
- 2.Qe4#
- 1...Se5
- 2.Se6#
- 1...Bb5!
- threat
- 1.Sd4?
- Keys
- 1.Se7!
- threat
- 2.Rf5#
- 1...Qxd2
- 2.Qe4#
- 1...Qxa5
- 2.Qe4#
- 1...Qc5
- 2.Qe4#
- 1...Qb5
- 2.Qe4#
- 1...Bb5
- 2.Sg6#
- 1...Sc5
- 2.Sb5#
- 1...Qe4
- 2.Qxe4#
- 1...Rf7
- 2.Sg6#
- 1...Bg6
- 2.Sxg6#
- 1...Bd7
- 2.Sg6#
- 1...Sg3
- 2.hxg3#
- 1...Sd4
- 2.Qe4#
- 1...Se5
- 2.Sd5#
- threat
- 1.Se7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 7
- Sets
- Q(d);N_GUARD,XP(A)::QAR1(G)
- Q(d);N_GUARD::QAR1(G)
- Q(d);N_GUARD,XR(D)::QAR1(G)
- Q(d);N_GUARD::QAR1(G),XQ(d)
- Q(d);N_GUARD,XB(H)::QAR1(G)
- S(a);OGATE::P(B),XS(a)
- S(a);S_CUTQ(d)::QAR1(G)
- Tries
- Try
- S(E);
- Threat
- DUALS(4)
- Vars
- Q(d);XR(D)::QAR1(G)
- Q(d);XS(E)::R1(D)
- S(a);XS(E)::QAR1(G)
- Q(d);::QAR1(G)
- B(h);::QAR1(G)
- Refutation
- S(b);
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- Q(d);N_GUARD,XP(A)::QAR1(G)
- Q(d);N_GUARD,XR(D)::QAR1(G)
- R(g);XS(E)::R1(D)
- Q(d);N_GUARD::QAR1(G)
- S(b);N_GUARD,S_CUTQ(d)::B(H)+S(F)
- Q(d);::R1(D)
- Q(d);N_GUARD::QAR1(G),XQ(d)
- B(h);::S(E)
- B(h);N_GUARD::S(E)
- B(h);::R1(D)
- S(a);S_CUTQ(d)::QAR1(G)
- S(b);::S(E)
- Refutation
- B(h);
- Try
- Actual
- S(E);
- Threat
- R1(D)
- Vars
- Q(d);N_GUARD,XP(A)::QAR1(G)
- Q(d);N_GUARD,XR(D)::QAR1(G)
- Q(d);N_GUARD::QAR1(G)
- B(h);N_GUARD::S(E)
- S(b);N_GUARD,S_CUTQ(d)::B(H)+S(F)
- Q(d);N_GUARD::QAR1(G),XQ(d)
- R(g);S_CUTB(h)::S(E)
- B(h);N_GUARD::S(E),XB(h)
- S(a);OGATE::P(B),XS(a)
- S(a);S_CUTQ(d)::QAR1(G)
- S(b);SBLOCK::S(E)
Developed and maintained by Brian Stephenson.
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