MESON Chess Problem Database

Problem Display
PID: 9965 (8/8/8/4B3/8/5R2/kp6/b5QK w - - 0 1)

Mansfield, Comins

Bournemouth Evening Echo, 1961

8/8/8/4B3/8/5R2/kp6/b5QK

#2

4 + 3

3550 Complete Mansfield/II 1997
2786 More Fun with Chess Miniatures 2000

SOLUTION

  • SOUND
  • Sets
    • 1...b1S
      • 2.Qg8#
    • 1...b1B
      • 2.Qa7#
      • 2.Qg8#
  • Tries
    • 1.Kg2?
      • 1...b1Q
        • 2.Qa7#
      • 1...b1B
        • 2.Qa7#
      • 1...b1R
        • 2.Qa7#
      • 1...b1S!
    • 1.Rb3?
      • 1...b1Q
        • 2.Qxb1#
      • 1...b1S
        • 2.Qxb1#
      • 1...b1B
        • 2.Qxb1#
      • 1...b1R
        • 2.Qxb1#
      • 1...Kxb3!
  • Keys
    • 1.Kh2!
      • 1...b1Q
        • 2.Qa7#
      • 1...b1S
        • 2.Qg8#
      • 1...b1B
        • 2.Qa7#
        • 2.Qg8#
      • 1...b1R
        • 2.Qa7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(c);SBLOCK::QAB(A)
  • Tries
    • Try
      • K(B);S_FLIGHT
      • Vars
        • P(c);SBLOCK::QAR(A)
      • Refutation
        • P(c);
    • Try
      • R(C);
      • Vars
        • P(c);P_PINQ(A)::QAB1(A),XQ(c)
        • P(c);::QAB1(A),XS(c)
        • P(c);::QAB1(A),XB(c)
        • P(c);P_PINQ(A)::QAB1(A),XR(c)
      • Refutation
        • K(b);S_FLIGHT,XR(C)
  • Actual
    • K(B);P-FLIGHT
    • Vars
      • P(c);SBLOCK::QAR(A)
      • P(c);SBLOCK::QAB(A)
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