MESON Chess Problem Database

Problem Display
PID: 62494 (1n4K1/3N4/R2b2p1/3k4/1P1pR2N/5b2/8/4Q1q1 w - - 0 1)

Webster, LJ

Chess, 1944

1n4K1/3N4/R2b2p1/3k4/1P1pR2N/5b2/8/4Q1q1

#2

7 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Sc6
      • 2.Sb6#
    • 1...d3
      • 2.Sf6#
  • Keys
    • 1.Qc3!
      • threat
        • 2.Sf6#
      • 1...Kxe4
        • 2.Qxf3#
      • 1...Bxe4
        • 2.Qb3#
      • 1...Sxd7
        • 2.Qc6#
      • 1...Qg5
        • 2.Qxd4#
      • 1...Be5
        • 2.Rxe5#
      • 1...Be7
        • 2.Re5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 2
  • Sets
    • S(g);SBLOCK::S(F)
    • P(c);::S(F)
  • Actual
    • Q(A);
    • Threat
      • S(F)
    • Vars
      • K(d);OGATEB,S_FLIGHT,XR(C)::QAB1(A),XB(b)
      • B(b);SBLOCK,XR(C)::QAB(A)
      • S(g);N_GUARD,XS(F)::QAB1(A)
      • Q(a);N_GUARD::QAR1(A),XP(c)
      • B(e);N_GUARD::R1(C),XB(e)
      • B(e);N_GUARD::R1(C)
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