MESON Chess Problem Database

Problem Display
PID: 160639 (4k3/4P3/4K3/1p1p3p/1RP2ppP/n1n2B2/6R1/7Q w - - 0 1)

Oganesyan, Alexei Sergeevich

British Chess Magazine, 2015

4k3/4P3/4K3/1p1p3p/1RP2ppP/n1n2B2/6R1/7Q

#2

8 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...gxf3
      • 2.Rg8#
    • 1...g3
      • 2.Bxh5#
    • 1...bxc4
      • 2.Rb8#
    • 1...dxc4
      • 2.Bc6#
    • 1...d4
      • 2.Bc6#
  • Keys
    • 1.Qa1!
      • 1...Sxc4
        • 2.Qa8#
      • 1...gxf3
        • 2.Rg8#
      • 1...bxc4
        • 2.Rb8#
      • 1...dxc4
        • 2.Bc6#
      • 1...Sab1
        • 2.Qa8#
      • 1...Sc2
        • 2.Qa8#
      • 1...Scb1
        • 2.Qh8#
      • 1...Sd1
        • 2.Qh8#
      • 1...Sa2
        • 2.Qh8#
      • 1...Se2
        • 2.Qh8#
      • 1...Sa4
        • 2.Qh8#
      • 1...Se4
        • 2.Qh8#
      • 1...g3
        • 2.Bxh5#
      • 1...d4
        • 2.Bc6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
    • P(d);OGATE,XB(C)::R(B)
    • P(d);OGATE::B(C),XP(g)
    • P(e);OGATE,XP(E)::R(D)
    • P(f);OGATE,XP(E)::B(C)
    • P(f);OGATE::B(C)
  • Actual
    • Q(A);
    • Vars
      • S(a);OGATE,XP(E)::QAR(A)
      • P(d);OGATE,XB(C)::R(B)
      • P(e);OGATE,XP(E)::R(D)
      • P(f);OGATE,XP(E)::B(C)
      • S(a);OGATE::QAR(A)
      • S(b);OGATE::QAR(A)
      • P(d);OGATE::B(C),XP(g)
      • P(f);OGATE::B(C)
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