MESON Chess Problem Database

Problem Display
PID: 57767 (3B2B1/N2p4/3P4/3n4/pk6/p4R1K/P7/2R5 w - - 0 1)

Backe, Odd Erik

Scacco!, 1995

3B2B1/N2p4/3P4/3n4/pk6/p4R1K/P7/2R5

#2

8 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Sf4+
      • 2.Rxf4#
    • 1...Sf6
      • 2.Rc4#
    • 1...Se7
      • 2.Rc4#
      • 2.Rf4#
  • Keys
    • 1.Rf5!
      • 1...Sf4+
        • 2.Rxf4#
      • 1...Sc3
        • 2.Ba5#
      • 1...Se3
        • 2.Ba5#
        • 2.Rb5#
      • 1...Sb6
        • 2.Rb5#
      • 1...Sf6
        • 2.Ba5#
        • 2.Rc4#
        • 2.Rb5#
      • 1...Sc7
        • 2.Rc4#
      • 1...Se7
        • 2.Ba5#
        • 2.Rc4#
        • 2.Rf4#
        • 2.Rb5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • S(d);CHECK,N_GUARD::R(C),XS(d)
    • S(d);::R1(A)
  • Actual
    • R(C);
    • Vars
      • S(d);CHECK,N_GUARD::R(C),XS(d)
      • S(d);::B(G)
      • S(d);OGATE::R1(C)
      • S(d);::R1(A)
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