MESON Chess Problem Database

Problem Display
PID: 55632 (3bk1K1/2pq1R2/4bpB1/3Nn3/Q7/8/4R3/8 w - - 0 1)

Howard, Kenneth Samuel

Midweek Sports Referee, 1926

3bk1K1/2pq1R2/4bpB1/3Nn3/Q7/8/4R3/8

#2

6 + 7

5089 The Enjoyment of Chess Problems 1943

SOLUTION

  • SOUND
  • Sets
    • 1...Bh3
      • 2.Rxf6#
      • 2.Rxd7#
      • 2.Re7#
      • 2.Rg7#
      • 2.Rh7#
      • 2.Rf8#
    • 1...Bg4
      • 2.Rxf6#
      • 2.Rxd7#
      • 2.Re7#
      • 2.Rg7#
      • 2.Rh7#
      • 2.Rf8#
    • 1...Bxd5
      • 2.Qxd7#
    • 1...Bf5
      • 2.Re7#
      • 2.Rf8#
    • 1...Bxf7+
      • 2.Bxf7#
    • 1...Sd3
      • 2.Qxd7#
    • 1...Sf3
      • 2.Qxd7#
    • 1...Sc4
      • 2.Qxd7#
    • 1...Sg4
      • 2.Qxd7#
    • 1...Sxg6
      • 2.Qxd7#
    • 1...Sxf7
      • 2.Bxf7#
  • Tries
    • 1.Qxd7+?
      • 1...Bxd7
        • 2.Rxf6#
        • 2.Re7#
        • 2.Rg7#
        • 2.Rh7#
        • 2.Rf8#
      • 1...Sxd7!
  • Keys
    • 1.Kg7!
      • threat
        • 2.Re7#
      • 1...Bxd5
        • 2.Qxd7#
      • 1...Bxf7
        • 2.Bxf7#
      • 1...Sxg6
        • 2.Qxd7#
      • 1...Sxf7
        • 2.Bxf7#
      • 1...Be7
        • 2.Rf8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 4
  • Sets
    • B(b);N_GUARD,P_SPINS(a),XS(C)::QAB1(B),XQ(e)
    • B(b);CHECK,OGATE,P_SPINB(b),P_SPINS(a),XR(E)::B(D),XB(b)
    • S(a);N_GUARD,P_SPINB(b)::QAB1(B),XQ(e)
    • S(a);N_GUARD,P_SPINB(b),XB(D)::QAB1(B),XQ(e)
    • S(a);OGATE,P_SPINB(b),P_SPINS(a),XR(E)::B(D),XS(a)
  • Tries
    • Try
      • Q(B);CHECK,XQ(e)
      • Refutation
        • S(a);P_SPINB(b),XQ(B)
  • Actual
    • K(F);P-FLIGHT
    • Threat
      • B(D)+R(E),DCHECK
    • Vars
      • B(b);N_GUARD,P_SPINS(a),XS(C)::QAB1(B),XQ(e)
      • B(b);OGATE,P_SPINB(b),P_SPINS(a),XR(E)::B(D),XB(b)
      • S(a);N_GUARD,P_SPINB(b),XB(D)::QAB1(B),XQ(e)
      • S(a);OGATE,P_SPINB(b),P_SPINS(a),XR(E)::B(D),XS(a)
      • B(f);N_PINR(E)::B(D)+R(E),DCHECK
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