MESON Chess Problem Database
Problem Display
PID: 150392 (4K1NB/3p3p/R1nb2kr/R1p4p/2nNp2P/8/1Q3P2/8 w - - 0 1)
Schofield, FT
The Referee, 1925
(First published on Sun Nov 15 1925)
#2
9 + 10
| 15239 | Valois Notebooks | 2014 |
SOLUTION
- SOUND
- Sets
- 1...Bh2
- 2.Se7#
- 1...Bg3
- 2.Se7#
- 1...Bf4
- 2.Se7#
- 1...Be5
- 2.Se7#
- 1...Bc7
- 2.Se7#
- 1...Be7
- 2.Sxe7#
- 1...Bb8
- 2.Se7#
- 1...Sb4
- 2.Se7#
- 1...Sxd4
- 2.Se7#
- 1...Sxa5
- 2.Se7#
- 1...Se5
- 2.Se7#
- 1...Sa7
- 2.Se7#
- 1...Se7
- 2.Sxe7#
- 1...Sb8
- 2.Se7#
- 1...Sd8
- 2.Se7#
- 1...e3
- 2.Qb1#
- 2.Qc2#
- 1...cxd4
- 2.Rg5#
- 1...Bh2
- Tries
- 1.Sxc6?
- threat
- 2.Sce7#
- 2.Qf6#
- 1...Sxb2
- 2.Sce7#
- 1...dxc6
- 2.Qf6#
- 1...Be5
- 2.Sce7#
- 2.Sge7#
- 1...Be7
- 2.Scxe7#
- 2.Sgxe7#
- 1...Se5
- 2.Sce7#
- 1...Sb6
- 2.Qf6#
- 1...Kf5!
- threat
- 1.Qb3?
- 1...S4xa5
- 2.Qf7#
- 1...Sxd4
- 2.Se7#
- 1...S6xa5
- 2.Se7#
- 2.Qg3#
- 1...cxd4
- 2.Rg5#
- 1...Se3
- 2.Qf7#
- 1...Bh2
- 2.Se7#
- 1...Bg3
- 2.Se7#
- 2.Qxg3#
- 1...Bf4
- 2.Se7#
- 1...Be5
- 2.Se7#
- 1...Bc7
- 2.Se7#
- 1...Be7
- 2.Sxe7#
- 1...Bb8
- 2.Se7#
- 1...Bf8
- 2.Qg3#
- 1...Sb2
- 2.Qf7#
- 1...Sd2
- 2.Qf7#
- 1...Sa3
- 2.Qf7#
- 1...Sb6
- 2.Qf7#
- 1...Sb4
- 2.Se7#
- 2.Qg3#
- 1...S6e5
- 2.Se7#
- 1...Sa7
- 2.Se7#
- 2.Qg3#
- 1...Se7
- 2.Sxe7#
- 2.Qg3#
- 1...Sb8
- 2.Se7#
- 2.Qg3#
- 1...Sd8
- 2.Se7#
- 2.Qg3#
- 1...e3
- 2.Qc2#
- 2.Qb1#
- 2.Qd3#
- 1...S4e5!
- 1...S4xa5
- 1.f4?
- threat
- 2.Qg2#
- 2.f5#
- 1...Bxf4
- 2.Se7#
- 1...Sxb2
- 2.f5#
- 1...Sxd4
- 2.Se7#
- 1...exf4 ep
- 2.Qb1#
- 2.Qc2#
- 1...Be7
- 2.Sxe7#
- 2.f5#
- 1...Sd2
- 2.f5#
- 1...S4e5
- 2.f5#
- 1...S6e5
- 2.Se7#
- 2.f5#
- 1...Se7
- 2.Sxe7#
- 2.Qg2#
- 1...Se3!
- threat
- 1.Sxc6?
- Keys
- 1.Qb8!
- 1...Bxb8
- 2.Se7#
- 1...S4xa5
- 2.Qxd6#
- 1...Sxd4
- 2.Se7#
- 1...S6xa5
- 2.Se7#
- 1...Sxb8
- 2.Se7#
- 1...cxd4
- 2.Rg5#
- 1...Se3
- 2.Qxd6#
- 1...Bh2
- 2.Se7#
- 1...Bg3
- 2.Se7#
- 2.Qxg3#
- 1...Bf4
- 2.Se7#
- 1...Be5
- 2.Se7#
- 1...Bc7
- 2.Se7#
- 1...Be7
- 2.Sxe7#
- 1...Bf8
- 2.Qg3#
- 1...Sb2
- 2.Qxd6#
- 1...Sd2
- 2.Qxd6#
- 1...Sa3
- 2.Qxd6#
- 1...S4e5
- 2.Qxd6#
- 1...Sb6
- 2.Qxd6#
- 1...Sb4
- 2.Se7#
- 1...S6e5
- 2.Se7#
- 1...Sa7
- 2.Se7#
- 1...Se7
- 2.Sxe7#
- 1...Sd8
- 2.Se7#
- 1...e3
- 2.Qb1#
- 1...Bxb8
- 1.Qb8!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 9
- REMOVED MATES = 1
- Sets
- B(f);N_GUARD,P_SPINS(e)::S(H)
- B(f);N_GUARD,P_SPINS(e)::S(H),XB(f)
- S(e);N_GUARD,P_SPINB(f)::S(H)
- S(e);N_GUARD,P_SPINB(f),XS(C)::S(H)
- S(e);N_GUARD,P_SPINB(f),XR(E)::S(H)
- S(e);N_GUARD,P_SPINB(f)::S(H),XS(e)
- P(c);OGATE,XS(C)::R1(E)
- Tries
- Try
- S(C);XS(e)
- Threat
- DUALS(2)
- Vars
- S(a);XQ(A)::S(C)
- P(i);XS(C)::QAR1(A)
- S(a);::S(C)
- S(a);::QAR1(A)
- Refutation
- K(g);P_SPINP(c),S_FLIGHT
- Try
- Q(A);
- Vars
- S(a);OGATE,XR(E)::QAB1(A)
- S(e);N_GUARD,P_SPINB(f),XS(C)::S(H)
- P(c);OGATE,XS(C)::R1(E)
- S(a);OGATE::QAB1(A)
- B(f);N_GUARD,P_SPINS(e)::S(H)
- B(f);N_GUARD,P_SPINS(e)::S(H),XB(f)
- B(f);N_GUARD,P_SPINS(e)::QAR(A)
- S(e);N_GUARD,P_SPINB(f)::S(H)
- Refutation
- S(a);
- Try
- P(B);
- Threat
- DUALS(2)
- Vars
- B(f);N_GUARD,P_SPINS(e),XP(B)::S(H)
- S(a);XQ(A)::P(B)
- S(e);N_GUARD,P_SPINB(f),XS(C)::S(H)
- S(a);::P(B)
- Refutation
- S(a);
- Try
- Actual
- Q(A);
- Vars
- B(f);N_GUARD,P_SPINS(e),XQ(A)::S(H)
- S(a);N_GUARD,XR(E)::QAR(A),XB(f)
- S(e);N_GUARD,P_SPINB(f),XS(C)::S(H)
- S(e);N_GUARD,P_SPINB(f),XR(E)::S(H)
- S(e);N_GUARD,P_SPINB(f),XQ(A)::S(H)
- P(c);OGATE,XS(C)::R1(E)
- S(a);N_GUARD::QAR(A),XB(f)
- B(f);N_GUARD,P_SPINS(e)::S(H)
- B(f);N_GUARD,P_SPINS(e)::S(H),XB(f)
- B(f);OGATE,P_SPINS(e)::QAR(A)
- S(e);N_GUARD,P_SPINB(f)::S(H)
- S(e);N_GUARD,P_SPINB(f)::S(H),XS(e)
- P(b);OGATEB::QAB(A)
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