MESON Chess Problem Database

Problem Display
PID: 206562 (5Q2/8/2P1k3/2n5/3K4/1r6/B7/8 w - - 0 1)

Sonnenfeld, Pal

Pesti Naplo, 1925

5Q2/8/2P1k3/2n5/3K4/1r6/B7/8

#2

4 + 3

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Sd3
      • 2.Bxb3#
    • 1...Sa4
      • 2.Bxb3#
    • 1...Se4
      • 2.Bxb3#
    • 1...Sa6
      • 2.Bxb3#
    • 1...Sb7
      • 2.Bxb3#
    • 1...Sd7
      • 2.Bxb3#
  • Keys
    • 1.c7!
      • 1...Kd7
        • 2.c8Q#
      • 1...Sd3
        • 2.c8Q#
        • 2.c8B#
      • 1...Sa4
        • 2.c8Q#
        • 2.c8B#
      • 1...Se4
        • 2.c8Q#
        • 2.c8B#
      • 1...Sa6
        • 2.c8Q#
        • 2.c8B#
      • 1...Sb7
        • 2.c8Q#
        • 2.c8B#
      • 1...Sd7
        • 2.Bxb3#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 5
  • Sets
    • S(b);N_GUARD::B(A),XR(a)
  • Actual
    • P(C);
    • Vars
      • K(c);N_SPINR(a),S_FLIGHT::P=Q
      • S(b);N_GUARD::P=Q
      • S(b);N_GUARD,SBLOCK::B(A),XR(a)
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