MESON Chess Problem Database

Problem Display
PID: 10055 (8/4p2K/3P4/5kP1/2R1Np2/1B3Q2/8/8 w - - 0 1)

Mansfield, Comins

3rd Prize, Segal MT, 1961

8/4p2K/3P4/5kP1/2R1Np2/1B3Q2/8/8

#2

7 + 3

3310 2345 Chess Problems 1997
3550 Complete Mansfield/II 1997

SOLUTION

  • SOUND
  • Sets
    • 1...e5
      • 2.Qh3#
  • Tries
    • 1.Qxf4+?
      • 1...Ke6
        • 2.Rc7#
      • 1...Kxf4!
  • Keys
    • 1.Sf6!
      • 1...Ke5
        • 2.Qd5#
      • 1...Kxg5
        • 2.Qxf4#
      • 1...Ke6
        • 2.Qd5#
      • 1...exd6
        • 2.Qd5#
      • 1...exf6
        • 2.Rc5#
      • 1...e5
        • 2.Qg4#
      • 1...e6
        • 2.Qxf4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • P(c);SBLOCK::QAB(B)
  • Tries
    • Try
      • Q(B);CHECK,XP(a)
      • Vars
        • K(b);S_FLIGHT::B(A)+R(C)
      • Refutation
        • K(b);P-FLIGHT,XQ(B)
  • Actual
    • S(D);
    • Vars
      • K(b);N_SPINP(a),P-FLIGHT::QAR1(B)
      • K(b);N_SPINP(a),P-FLIGHT,XP(E)::QAB1(B),XP(a)
      • K(b);N_SPINP(a),S_FLIGHT::QAB1(B)
      • P(c);N_GUARD,XP(F)::QAR2(B)
      • P(c);N_GUARD,XS(D)::R(C)
      • P(c);SBLOCK::QAB1(B)
      • P(c);SBLOCK::QAR1(B),XP(a)
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