MESON Chess Problem Database

Problem Display
PID: 10601 (5K1k/6R1/8/8/8/8/1Q6/bb4n1 w - - 0 1)

Mundel, Manfred

2nd Comm., Freie Presse, 1966

5K1k/6R1/8/8/8/8/1Q6/bb4n1

#2

3 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Bh7
      • 2.Rg8#
  • Tries
    • 1.Rxg1+?
      • 1...Kh7
        • 2.Qh2#
      • 1...Bxb2!
    • 1.Qh2+?
      • 1...Bh7
        • 2.Rxh7#
        • 2.Rg8#
        • 2.Qxh7#
      • 1...Sh3!
  • Keys
    • 1.Qb7!
      • threat
        • 2.Rg8#
      • 1...Bxg7+
        • 2.Qxg7#
      • 1...Ba2
        • 2.Rh7#
      • 1...Bh7
        • 2.Rxh7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • B(b);SBLOCK::QAB(A)+R(B),DCHECK
  • Tries
    • Try
      • R(B);CHECK,XS(c)
      • Vars
        • K(d);P-FLIGHT::QAR(A)
      • Refutation
        • B(a);XQ(A)
    • Try
      • Q(A);CHECK
      • Refutation
        • S(c);P_SPINS(c)
  • Actual
    • Q(A);
    • Threat
      • R1(B)
    • Vars
      • B(a);CHECK,OGATE,XR(B)::QAB1(A),XB(a)
      • B(b);N_GUARD::R1(B)
      • B(b);N_GUARD::R1(B),XB(b)
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