MESON Chess Problem Database

Problem Display
PID: 17693 (7Q/1K6/8/2b5/6n1/7N/4R2p/7k w - - 0 1)

Ekstrom, Sven Johan Adrian

Springaren, 1948

7Q/1K6/8/2b5/6n1/7N/4R2p/7k

#2

4 + 4

3680 Jan Knoppel Udvalgte Skakproblemer 1955

SOLUTION

  • SOUND
  • Sets
    • 1...Bd6
      • 2.Qa1#
    • 1...Be7
      • 2.Qa1#
    • 1...Bf8
      • 2.Qa1#
  • Keys
    • 1.Qg8!
      • threat
        • 2.Qd5#
      • 1...Se3
        • 2.Sf2#
      • 1...Sf2
        • 2.Re1#
      • 1...Se5
        • 2.Qg2#
      • 1...Sf6
        • 2.Qg2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 3
  • Sets
    • B(d);N_GUARD::QAB1(D)
  • Actual
    • Q(D);
    • Threat
      • QAB(D)
    • Vars
      • S(c);N_GUARD,S_CUTB(d)::S(B)
      • S(c);S_CUTB(d)::R(A)
      • S(c);OGATE::QAB1(D)
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