MESON Chess Problem Database

Problem Display
PID: 248880 (3K4/6Q1/B7/8/3p4/r2q1p2/p1NR1Bp1/5k2 w - - 0 1)

Blikeng, Bjarne

Springaren, 1949

3K4/6Q1/B7/8/3p4/r2q1p2/p1NR1Bp1/5k2

#2

6 + 7

15601 Albrecht-Leiss-Degener Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Ra4
      • 2.Bxd3#
    • 1...Ra5
      • 2.Bxd3#
    • 1...g1Q
      • 2.Qxg1#
    • 1...g1S
      • 2.Qxg1#
    • 1...g1B
      • 2.Qxg1#
    • 1...g1R
      • 2.Qxg1#
  • Keys
    • 1.Qxd4!
      • threat
        • 2.Se3#
      • 1...Qxa6
        • 2.Qa1#
      • 1...Rxa6
        • 2.Qxd3#
      • 1...Qe2
        • 2.Rd1#
      • 1...Qc4
        • 2.Qa1#
      • 1...Qb5
        • 2.Qa1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 6
  • Sets
    • R(d);N_GUARD::B(D),XQ(e)
    • P(c);OGATE::QAR1(E),XQ(c)
    • P(c);OGATE::QAR1(E),XS(c)
    • P(c);OGATE::QAR1(E),XB(c)
    • P(c);OGATE::QAR1(E),XR(c)
  • Actual
    • Q(E);P_SPINQ(E),XP(g)
    • Threat
      • S(A)
    • Vars
      • Q(e);N_PINQ(E),N_SPINQ(e),XB(D)::QAR(E)
      • R(d);N_GUARD,N_SPINQ(e),XB(D)::QAB(E),XQ(e)
      • Q(e);N_PINQ(E)::R(B)
      • Q(e);N_PINQ(E)::QAR(E)
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