MESON Chess Problem Database

Problem Display
PID: 81754 (Kn3B2/1R3p1r/2k3p1/3p4/p1r1b3/4p3/2p1Q1Bp/7q w - - 0 1)

Stewart, John

Stubbs, Arthur Goodwin

The Field, 1952

(First published on Sat Nov 29 1952)

Kn3B2/1R3p1r/2k3p1/3p4/p1r1b3/4p3/2p1Q1Bp/7q

#2

5 + 13

SOLUTION

  • SOUND
  • Sets
    • 1...Rc3
      • 2.Qb5#
    • 1...Rd4
      • 2.Qb5#
    • 1...Bf5
      • 2.Qxc4#
    • 1...d4
      • 2.Qxc4#
  • Keys
    • 1.Qg4!
      • threat
        • 2.Qc8#
      • 1...d4
        • 2.Qxe4#
      • 1...Bf5
        • 2.Qxc4#
      • 1...Sa6
        • 2.Qd7#
      • 1...Sd7
        • 2.Qxd7#
      • 1...f5
        • 2.Qxg6#
      • 1...f6
        • 2.Qe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 2
  • Sets
    • R(f);OGATE::QAB1(A)
    • B(g);P_SPINP(h)::QAR2(A),XR(f)
    • P(h);N_GUARD,P_SPINB(g)::QAR2(A),XR(f)
  • Actual
    • Q(A);
    • Threat
      • QAR2(A)
    • Vars
      • P(h);OGATEB,P_SPINB(g)::QAB(A),XB(g)
      • B(g);OGATE,P_SPINP(h)::QAR2(A),XR(f)
      • S(m);N_GUARD::QAB1(A)
      • S(m);N_GUARD::QAB1(A),XS(m)
      • P(k);N_GUARD,S_CUTB(g)::QAR(A),XP(j)
      • P(k);N_GUARD::QAR2(A)
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