MESON Chess Problem Database

Problem Display
PID: 17390 (rN2k3/6pp/3Q1n2/n6P/6B1/8/8/5R1K w q - 0 1)

Whyatt, William Albert

Melbourne Leader, 1946

rN2k3/6pp/3Q1n2/n6P/6B1/8/8/5R1K

#2

6 + 6

3310 2345 Chess Problems 1997

SOLUTION

  • SOUND
  • Sets
    • 1...Se4
      • 2.Rf8#
      • 2.Qf8#
      • 2.Qd7#
    • 1...Sxg4
      • 2.Rf8#
      • 2.Qf8#
      • 2.Qd7#
    • 1...Sd5
      • 2.Rf8#
      • 2.Qf8#
      • 2.Qd7#
    • 1...Sxh5
      • 2.Rf8#
      • 2.Qf8#
      • 2.Qd7#
    • 1...Sd7
      • 2.Qxd7#
    • 1...Sg8
      • 2.Rf8#
      • 2.Qf8#
      • 2.Qd7#
  • Tries
    • 1.Rxf6?
      • threat
        • 2.Rf8#
        • 2.Qf8#
        • 2.Qd7#
      • 1...Ra7
        • 2.Rf8#
        • 2.Qf8#
      • 1...gxf6!
    • 1.Qe6+?
      • 1...Kf8
        • 2.Sd7#
      • 1...Kd8!
    • 1.Qxf6?
      • threat
        • 2.Bd7#
        • 2.Re1#
        • 2.Qf8#
      • 1...Rxb8
        • 2.Re1#
        • 2.Qf8#
      • 1...Ra6
        • 2.Bd7#
        • 2.Qf8#
      • 1...Ra7
        • 2.Qf8#
      • 1...Sc4
        • 2.Bd7#
        • 2.Qf8#
      • 1...Sc6
        • 2.Bd7#
        • 2.Qf8#
      • 1...gxf6!
  • Keys
    • 1.Sd7!
      • threat
        • 2.Qf8#
      • 1...Kf7
        • 2.Qe6#
      • 1...Kd8
        • 2.Sxf6#
      • 1...0-0-0
        • 2.Qb8#
      • 1...Sxg4
        • 2.Rf8#
      • 1...Sxd7
        • 2.Qxd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • S(b);N_GUARD::QAB1(E),XS(b)
  • Tries
    • Try
      • R(A);XS(b)
      • Threat
        • DUALS(3)
      • Refutation
        • P(c);XR(A)
    • Try
      • Q(E);CHECK
      • Vars
        • K(f);P-FLIGHT,P_SPINS(b)::S(F)
      • Refutation
        • K(f);P-FLIGHT
    • Try
      • Q(E);XS(b)
      • Threat
        • DUALS(3)
      • Vars
        • R(e);::QAR1(E)
      • Refutation
        • P(c);XQ(E)
  • Actual
    • S(F);
    • Threat
      • QAR1(E)
    • Vars
      • K(f);P_SPINS(b),S_FLIGHT::QAB1(E)
      • K(f);P-FLIGHT::QAR(E)+S(F),XS(b)
      • K(f);0-0-0::QAR1(E)
      • S(b);OGATE,XB(C)::R1(A)
      • S(b);OGATE,XS(F)::QAB1(E),XS(b)
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