MESON Chess Problem Database

Problem Display
PID: 79630 (1B2R3/1B4p1/Q7/3NP1r1/2npkNp1/4pn1R/K1P2p1q/8 w - - 0 1)

Harley, Brian

The Field, 1935

(First published on Sat Jun 22 1935)

1B2R3/1B4p1/Q7/3NP1r1/2npkNp1/4pn1R/K1P2p1q/8

#2

10 + 10

6388 ChessMoves 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qxf4
      • 2.Se7#
    • 1...Rxe5
      • 2.Qg6#
    • 1...Rg6
      • 2.Qxg6#
    • 1...Sd2
      • 2.Qd3#
    • 1...Sa3
      • 2.Qd3#
    • 1...Sa5
      • 2.Qd3#
    • 1...Sxe5
      • 2.Qd3#
    • 1...Sb6
      • 2.Qd3#
    • 1...Sd6
      • 2.Qd3#
  • Tries
    • 1.Sc3+?
      • 1...Kf5
        • 2.Rf8#
      • 1...Kxf4!
    • 1.Sb4+?
      • 1...Kf5
        • 2.Rf8#
      • 1...Kxf4!
    • 1.Sb6+?
      • 1...Kf5
        • 2.Rf8#
      • 1...Kxf4!
  • Keys
    • 1.Se2!
      • threat
        • 2.Se7#
      • 1...Kf5
        • 2.Se7#
      • 1...Qxe5
        • 2.Sg3#
      • 1...Rxe5
        • 2.Qg6#
      • 1...Sfxe5
        • 2.Sxe3#
      • 1...Scxe5
        • 2.Qd3#
      • 1...Rg6
        • 2.Qxg6#
      • 1...Sa5
        • 2.Qd3#
      • 1...Sb6
        • 2.Qd3#
      • 1...Sd6
        • 2.Qd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 3
  • Sets
    • Q(b);SBLOCK,XS(D)::B(H)+S(E)
    • R(i);N_GUARD,P_SPINR(i),XP(F)::QAB(G)
    • R(i);N_GUARD::QAB(G),XR(i)
    • S(e);OGATE::QAB1(G)
    • S(e);OGATE,P_SPINS(e),XP(F)::QAB1(G)
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • K(g);S_FLIGHT::R(J)
      • Refutation
        • K(g);P-FLIGHT,XS(D)
    • Try
      • S(E);CHECK
      • Vars
        • K(g);S_FLIGHT::R(J)
      • Refutation
        • K(g);P-FLIGHT,XS(D)
    • Try
      • S(E);CHECK
      • Vars
        • K(g);S_FLIGHT::R(J)
      • Refutation
        • K(g);P-FLIGHT,XS(D)
  • Actual
    • S(D);
    • Threat
      • B(H)+S(E)
    • Vars
      • K(g);S_FLIGHT::S(E)
      • Q(b);N_GUARD,P_SPINQ(b),XP(F)::S(D)
      • R(i);N_GUARD,P_SPINR(i),XP(F)::QAB(G)
      • S(d);P_SPINS(d),XP(F)::B(H)+S(E),XP(c)
      • S(e);OGATE,P_SPINS(e),XP(F)::QAB1(G)
      • R(i);N_GUARD::QAB(G),XR(i)
      • S(e);OGATE::QAB1(G)
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