MESON Chess Problem Database

Problem Display
PID: 108767 (3k4/1P1pp3/3bp3/4R3/5Q2/8/8/4K3 w - - 0 1)

Lamer, Joseph A

La Presse, 1927

3k4/1P1pp3/3bp3/4R3/5Q2/8/8/4K3

#2

4 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Ba3
      • 2.b8Q#
    • 1...Bc5
      • 2.b8Q#
    • 1...Bc7
      • 2.Qf8#
  • Keys
    • 1.Rc5!
      • threat
        • 2.Rc8#
        • 2.Qf8#
      • 1...Ke8
        • 2.Rc8#
      • 1...Bxf4
        • 2.Rc8#
      • 1...Bxc5
        • 2.Qb8#
        • 2.b8Q#
        • 2.b8R#
      • 1...Bc7
        • 2.Qf8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • B(a);N_GUARD::P=Q
    • B(a);SBLOCK::QAR2(B)
  • Actual
    • R(C);
    • Threat
      • DUALS(2)
    • Vars
      • K(e);P-FLIGHT::R(C)
      • B(a);XQ(B)::R1(C)
      • B(a);::QAR2(B)
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