MESON Chess Problem Database

Problem Display
PID: 138786 (3B3k/2R3b1/5R2/5K2/8/8/2Q5/8 w - - 0 1)

Woodworth, Robert

6th HM., StrateGems 01. Miniature Ty., 2010

3B3k/2R3b1/5R2/5K2/8/8/2Q5/8

#2

5 + 2

SOLUTION

  • SOUND
  • Sets
    • 1...Bf8
      • 2.Rxf8#
  • Tries
    • 1.Kg4?
      • 1...Bxf6
        • 2.Qh7#
      • 1...Bh6
        • 2.Qh7#
      • 1...Bf8
        • 2.Rxf8#
        • 2.Qh7#
      • 1...Kg8!
    • 1.Ke6?
      • 1...Bxf6
        • 2.Qh7#
      • 1...Bh6
        • 2.Qh7#
      • 1...Bf8
        • 2.Rxf8#
        • 2.Qh7#
      • 1...Kg8!
    • 1.Rf8+?
      • 1...Kh7
        • 2.Kg5#
        • 2.Qh2#
      • 1...Bxf8!
    • 1.Qb3?
      • 1...Bxf6
        • 2.Bxf6#
      • 1...Bh6
        • 2.Rxh6#
      • 1...Bf8
        • 2.Rxf8#
      • 1...Kh7!
    • 1.Qa2?
      • 1...Bxf6
        • 2.Bxf6#
      • 1...Bh6
        • 2.Rxh6#
      • 1...Bf8
        • 2.Rxf8#
      • 1...Kh7!
    • 1.Qh2+?
      • 1...Bh6
        • 2.Rf8#
      • 1...Kg8!
    • 1.Qc4?
      • 1...Bxf6
        • 2.Bxf6#
      • 1...Bh6
        • 2.Rxh6#
      • 1...Bf8
        • 2.Rxf8#
      • 1...Kh7!
  • Keys
    • 1.Qg2!
      • threat
        • 2.Qxg7#
      • 1...Kh7
        • 2.Qxg7#
      • 1...Kg8
        • 2.Qxg7#
      • 1...Bxf6
        • 2.Bxf6#
      • 1...Bh6
        • 2.Rxh6#
      • 1...Bf8
        • 2.Rxf8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • B(a);N_GUARD::R(C),XB(a)
  • Tries
    • Try
      • K(B);S_FLIGHT
      • Vars
        • B(a);XR(C)::QAR1(A)
        • B(a);::QAR1(A)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • K(B);S_FLIGHT
      • Vars
        • B(a);XR(C)::QAR1(A)
        • B(a);::QAR1(A)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • R(C);CHECK
      • Refutation
        • B(a);XR(C)
    • Try
      • Q(A);
      • Vars
        • B(a);OGATE,XR(C)::B(E),XB(a)
        • B(a);N_GUARD::R(C),XB(a)
      • Refutation
        • K(b);P-FLIGHT,P_SPINB(a)
    • Try
      • Q(A);
      • Vars
        • B(a);OGATE,XR(C)::B(E),XB(a)
        • B(a);N_GUARD::R(C),XB(a)
      • Refutation
        • K(b);P-FLIGHT,P_SPINB(a)
    • Try
      • Q(A);CHECK
      • Vars
        • B(a);P_SPINB(a)::R(C)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(A);
      • Vars
        • B(a);OGATE,XR(C)::B(E),XB(a)
        • B(a);N_GUARD::R(C),XB(a)
      • Refutation
        • K(b);P-FLIGHT,P_SPINB(a)
  • Actual
    • Q(A);
    • Threat
      • QAB1(A),XB(a)
    • Vars
      • K(b);P-FLIGHT,P_SPINB(a)::QAR1(A),XB(a)
      • B(a);OGATE,XR(C)::B(E),XB(a)
      • B(a);N_GUARD::R(C),XB(a)
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