MESON Chess Problem Database

Problem Display
PID: 242867 (8/2P5/NpQ5/kr6/1b6/8/K7/R2B4 w - - 0 1)

Degener, Udo

Comm., Schach, 1982

8/2P5/NpQ5/kr6/1b6/8/K7/R2B4

#2

6 + 4

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kxa6
      • 2.Qa8#
    • 1...Rc5
      • 2.Qa4#
    • 1...Rd5
      • 2.Qa4#
    • 1...Re5
      • 2.Qa4#
    • 1...Rf5
      • 2.Qa4#
    • 1...Rg5
      • 2.Qa4#
    • 1...Rh5
      • 2.Qa4#
  • Keys
    • 1.Rb1!
      • 1...Kxa6
        • 2.Qa8#
      • 1...Rc5
        • 2.Qa4#
      • 1...Rd5
        • 2.Qa4#
      • 1...Re5
        • 2.Qa4#
      • 1...Rf5
        • 2.Qa4#
      • 1...Rg5
        • 2.Qa4#
      • 1...Rh5
        • 2.Qa4#
      • 1...Be1
        • 2.Qxb5#
      • 1...Bd2
        • 2.Qxb5#
      • 1...Ba3
        • 2.Qxb5#
      • 1...Bc3
        • 2.Qxb5#
      • 1...Bc5
        • 2.Qxb5#
      • 1...Bd6
        • 2.Qxb5#
      • 1...Be7
        • 2.Qxb5#
      • 1...Bf8
        • 2.Qxb5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • K(b);OGATEB,P-FLIGHT,P_SPINP(d),XS(D)::QAR2(E)
    • R(c);OGATE::QAR1(E)
  • Actual
    • R(A);
    • Vars
      • K(b);OGATEB,P-FLIGHT,P_SPINP(d),XS(D)::QAR2(E)
      • R(c);OGATE::QAR1(E)
      • B(a);::QAR1(E),XR(c)
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