MESON Chess Problem Database

Problem Display
PID: 11784 (2n2N2/5Rrn/K1B2r2/4pk2/5p1B/3N4/8/3Q4 w - - 0 1)

Chandler, Guy Wills

Busmen's Chess Review, 1972

2n2N2/5Rrn/K1B2r2/4pk2/5p1B/3N4/8/3Q4

#2

7 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Sxf8
      • 2.Rxf6#
    • 1...f3
      • 2.Qxf3#
  • Keys
    • 1.Sf2!
      • threat
        • 2.Qd7#
      • 1...Rfxf7
        • 2.Be4#
      • 1...Rgxf7
        • 2.Qg4#
      • 1...Sxf8
        • 2.Rxf6#
      • 1...f3
        • 2.Qxf3#
      • 1...e4
        • 2.Qd5#
      • 1...Sg5
        • 2.Qg4#
      • 1...Sb6
        • 2.Be4#
      • 1...Sd6
        • 2.Bd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • S(f);N_GUARD,XS(G)::R1(F),XR(d)
    • P(a);OGATEB::QAR2(A),XP(a)
  • Actual
    • S(B);
    • Threat
      • QAB(A)
    • Vars
      • R(d);N_PINB(E),N_SPINR(d),XR(F)::B(E)
      • R(e);N_GUARD,N_SPINR(d),XR(F)::QAB1(A)
      • S(f);N_GUARD,XS(G)::R1(F),XR(d)
      • P(a);OGATEB::QAR2(A),XP(a)
      • P(b);OGATEB::QAR2(A)
      • S(f);S_CUTR(e)::QAB1(A)
      • S(g);N_PINB(E)::B(E)
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