MESON Chess Problem Database

Problem Display
PID: 55305 (7b/4R3/1B6/3pr1p1/K1N1pqR1/3k4/1P1N3Q/2nB4 w - - 0 1)

Saunders, Denis M

The Problemist, 2004

7b/4R3/1B6/3pr1p1/K1N1pqR1/3k4/1P1N3Q/2nB4

#2

9 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Sa2
      • 2.Qe2#
    • 1...Se2
      • 2.Qxe2#
    • 1...Sb3
      • 2.Qe2#
  • Keys
    • 1.Sxe4!
      • threat
        • 2.Qc2#
      • 1...Kxc4
        • 2.Qc2#
      • 1...Kxe4
        • 2.Qh7#
      • 1...Qxh2
        • 2.Sc5#
      • 1...Qd2
        • 2.Sc5#
      • 1...Qf2
        • 2.Sxf2#
      • 1...Se2
        • 2.Qxe2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 2
  • Sets
    • S(a);N_GUARD::QAB1(D)
    • S(a);N_GUARD::QAB1(D),XS(a)
  • Actual
    • S(C);XP(c)
    • Threat
      • QAB1(D)
    • Vars
      • K(b);S_FLIGHT,XS(F)::QAR2(D)
      • K(b);OGATEB,P_SPINQ(d),P_SPINR(f),S_FLIGHT,XS(C)::QAB(D)
      • Q(d);XQ(D)::S(C)
      • Q(d);::S(C)
      • Q(d);N_GUARD::S(C),XQ(d)
      • S(a);N_GUARD::QAB1(D),XS(a)
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