MESON Chess Problem Database

Problem Display
PID: 54348 (1K6/8/7B/7B/1p3n2/b2PQ2r/r3P1Rp/3kN2R w - - 0 1)

Lobusov, Andrey Jakovlevic

5th HM., The Problemist, 1975

1K6/8/7B/7B/1p3n2/b2PQ2r/r3P1Rp/3kN2R

#2

9 + 7

56 The Problemist 2004

SOLUTION

  • SOUND
  • Sets
    • 1...Rc2
      • 2.Sf3#
  • Keys
    • 1.Qc5!
      • threat
        • 2.Sf3#
      • 1...Kd2
        • 2.e4#
      • 1...Rxe2
        • 2.Qc2#
      • 1...Sxe2
        • 2.Sc2#
      • 1...Sxg2
        • 2.Sxg2#
      • 1...Sxd3
        • 2.Sxd3#
      • 1...Rf3
        • 2.Sxf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 1
  • Sets
    • R(b);SBLOCK::R(B)+S(A)
  • Actual
    • Q(F);
    • Threat
      • R(B)+S(A)
    • Vars
      • K(a);P-FLIGHT,P_SPINS(g)::R(D)+P(C)
      • R(b);N_GUARD,P_SPINR(b),XP(C)::QAB1(F)
      • S(g);P_SPINS(g),XP(C)::R(B)+S(A)
      • S(g);XR(D)::R(B)+S(A),XS(g)
      • S(g);XP(E)::R(B)+S(A),XS(g)
      • R(e);::R(B)+S(A),XR(e)
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