MESON Chess Problem Database

Problem Display
PID: 141764 (n3N3/8/2p5/3k4/qr5p/BrbPQ2K/1p1pBN2/2R5 w - - 0 1)

Postma, Eelke

Die Schwalbe 032. TT, 1937-1938

n3N3/8/2p5/3k4/qr5p/BrbPQ2K/1p1pBN2/2R5

#2

8 + 10

102 Probleemblad 1977
133 The Problemist Supplement 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Rd4
      • 2.Sf6#
    • 1...Bd4
      • 2.Bf3#
      • 2.Qe4#
    • 1...Bf6
      • 2.Rc5#
    • 1...Bg7
      • 2.Rc5#
    • 1...Bh8
      • 2.Rc5#
  • Keys
    • 1.d4!
      • threat
        • 2.Qe4#
        • 2.Qe5#
      • 1...Rxd4
        • 2.Sf6#
      • 1...Bxd4
        • 2.Bf3#
      • 1...c5
        • 2.Qe4#
      • 1...b1Q
        • 2.Qe5#
      • 1...b1B
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 3
  • Sets
    • R(f);S_CUTB(d)::S(H)
    • B(d);OGATE::R1(A)
  • Actual
    • P(E);
    • Threat
      • DUALS(2)
    • Vars
      • R(f);XP(E)::S(H)
      • B(d);P_PINQ(F),XP(E)::B(B)
      • P(i);::QAB1(F)
      • P(a);::QAR1(F)
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