MESON Chess Problem Database

Problem Display
PID: 189511 (1B4R1/2N5/Q3pp2/1r2rk2/1P2N3/8/8/1B2K3 w - - 0 1)

Meyer, Heinrich Friedrich Ludwig

Das Interessante Blatt, 1911

1B4R1/2N5/Q3pp2/1r2rk2/1P2N3/8/8/1B2K3

#2

8 + 5

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Rxb4
      • 2.Qf1#
    • 1...Ra5
      • 2.Qf1#
    • 1...Rbc5
      • 2.Qf1#
    • 1...Rbd5
      • 2.Qf1#
    • 1...Rb6
      • 2.Qf1#
    • 1...Rb7
      • 2.Qf1#
    • 1...Rxb8
      • 2.Qf1#
  • Keys
    • 1.Sd5!
      • 1...Rxe4+
        • 2.Se3#
      • 1...Rxb4
        • 2.Qf1#
      • 1...Rbxd5
        • 2.Qf1#
      • 1...Rxb8
        • 2.Qf1#
      • 1...Rexd5
        • 2.Sg3#
      • 1...exd5
        • 2.Qxf6#
      • 1...Ra5
        • 2.Qf1#
      • 1...Rc5
        • 2.Qf1#
      • 1...Rb6
        • 2.Qf1#
      • 1...Rb7
        • 2.Qf1#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • R(a);OGATE,XP(C)::QAR(E)
    • R(a);OGATE::QAR(E)
    • R(a);OGATE,XB(G)::QAR(E)
  • Actual
    • S(F);
    • Vars
      • R(b);CHECK,P_SPINR(b),XS(D)::S(F)
      • R(a);OGATE,XP(C)::QAR(E)
      • R(a);OGATE,XS(F)::QAR(E)
      • R(a);OGATE,XB(G)::QAR(E)
      • R(b);N_PINS(D),XS(F)::B(A)+S(D),DCHECK
      • P(d);OGATE,XS(F)::QAR1(E),XP(e)
      • R(a);OGATE::QAR(E)
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