MESON Chess Problem Database

Problem Display
PID: 137258 (Q7/3rp3/4R3/p2pb3/3kN1K1/R4p2/1Nn2P2/1B1b4 w - - 0 1)

Bonavia-Hunt, Rev Noel Aubrey

The Field, 1924

(First published on Thu Sep 18 1924)

Q7/3rp3/4R3/p2pb3/3kN1K1/R4p2/1Nn2P2/1B1b4

#2

8 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Kxe4
      • 2.Ra4#
    • 1...Bh2
      • 2.Rd3#
    • 1...Bg3
      • 2.Rd3#
    • 1...Bf4
      • 2.Rd3#
    • 1...Bd6
      • 2.Rd3#
    • 1...Bf6
      • 2.Rd3#
    • 1...Bc7
      • 2.Rd3#
    • 1...Bg7
      • 2.Rd3#
    • 1...Bb8
      • 2.Rd3#
    • 1...Bh8
      • 2.Rd3#
      • 2.Qxh8#
    • 1...Se3+
      • 2.fxe3#
  • Tries
    • 1.Qa6?
      • threat
        • 2.Qd3#
      • 1...Se3+
        • 2.fxe3#
      • 1...Kxe4
        • 2.Qd3#
      • 1...dxe4
        • 2.Qc4#
      • 1...Se1
        • 2.Qb6#
      • 1...Sb4
        • 2.Qb6#
      • 1...Be2!
    • 1.Qa7+?
      • 1...Kxe4
        • 2.Re3#
        • 2.Qe3#
      • 1...Rxa7!
  • Keys
    • 1.Qh8!
      • threat
        • 2.Qxe5#
      • 1...Se3+
        • 2.fxe3#
      • 1...Kxe4
        • 2.Qxe5#
      • 1...Bxh8
        • 2.Rd3#
      • 1...Bf6
        • 2.Rd3#
      • 1...Bg7
        • 2.Rd3#
        • 2.Qxg7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 7
  • Sets
    • K(d);P-FLIGHT,P_SPINB(g),P_SPINP(f),P_SPINS(b),XS(E)::R(D)
    • B(g);::R1(D)
    • S(b);CHECK,OGATE::P(C),XS(b)
  • Tries
    • Try
      • Q(H);
      • Threat
        • QAR1(H)
      • Vars
        • S(b);CHECK,OGATE::P(C),XS(b)
        • K(d);P-FLIGHT,P_SPINB(g),P_SPINS(b),XS(E)::QAB1(H)
        • P(f);N_GUARD,SBLOCK,XS(E)::QAR1(H)
        • S(b);::QAB(H)
      • Refutation
        • B(a);
    • Try
      • Q(H);CHECK
      • Refutation
        • R(h);XQ(H)
  • Actual
    • Q(H);P_PINB(g)
    • Threat
      • QAB1(H),XB(g)
    • Vars
      • S(b);CHECK,OGATE::P(C),XS(b)
      • K(d);P-FLIGHT,P_SPINS(b),XS(E)::QAR1(H),XB(g)
      • B(g);N_SPINB(g),XQ(H)::R1(D)
      • B(g);::R1(D)
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