MESON Chess Problem Database

Problem Display
PID: 39810 (R7/B7/8/rPQ1K3/kr1PR3/1p2P3/1P6/8 w - - 0 1)

Lindner, Laszlo

Excelsior, 1934

R7/B7/8/rPQ1K3/kr1PR3/1p2P3/1P6/8

#2

9 + 4

5454 Near Snap 1930
4080 Mattbilder eines Lebens 1996

SOLUTION

  • SOUND
  • Sets
    • 1...Rc4
      • 2.Qxc4#
    • 1...Rxd4
      • 2.Rxd4#
    • 1...Rxa7
      • 2.Rxa7#
  • Keys
    • 1.Qc6!
      • 1...Rbxb5+
        • 2.d5#
      • 1...Raxb5+
        • 2.Bc5#
      • 1...Rxd4
        • 2.Rxd4#
      • 1...Rxa7
        • 2.Rxa7#
      • 1...Rc4
        • 2.Qxc4#
      • 1...Ra6
        • 2.Qxa6#

Anticipated by 185186(1930)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • R(c);OGATEB::QAR2(F),XR(c)
    • R(c);OGATE,P_SPINR(c),XP(C)::R(D),XR(c)
    • R(d);OGATE,P_SPINR(d),XB(H)::R(I),XR(d)
  • Actual
    • Q(F);P_SPINP(E)
    • Vars
      • R(c);CHECK,P_SPINR(c),XP(E)::R(D)+P(C)
      • R(d);CHECK,OGATEB,P_SPINR(d),XP(E)::R(I)+B(H)
      • R(c);OGATE,P_SPINR(c),XP(C)::R(D),XR(c)
      • R(d);N_PINP(E),OGATE,P_SPINR(d),XB(H)::R(I),XR(d)
      • R(c);OGATEB::QAR2(F),XR(c)
      • R(d);N_PINP(E),OGATEB::QAR2(F),XR(d)
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