MESON Chess Problem Database

Problem Display
PID: 114875 (2B2n2/3p1PK1/2P1k3/2n2N2/1R3Pp1/4N3/3r4/8 w - - 0 1)

Armeni, Alberto

Canadian Chess Chat, 1980

2B2n2/3p1PK1/2P1k3/2n2N2/1R3Pp1/4N3/3r4/8

#2

8 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sb3
      • 2.Re4#
    • 1...Sa4
      • 2.Re4#
    • 1...Se4
      • 2.Rxe4#
    • 1...Sa6
      • 2.Re4#
    • 1...Sb7
      • 2.Re4#
  • Keys
    • 1.cxd7!
      • threat
        • 2.d8S#
      • 1...Rxd7
        • 2.Rb6#
      • 1...Scxd7
        • 2.Re4#
      • 1...Sfxd7
        • 2.f8S#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 5
  • Sets
    • S(c);N_GUARD::R(B)
    • S(c);N_GUARD::R(B),XS(c)
  • Actual
    • P(E);XP(e)
    • Threat
      • P=S
    • Vars
      • R(a);N_GUARD,P_PINP(F),P_SPINR(a),XP(E)::R(B)
      • S(c);N_GUARD,P_SPINS(c),XP(E)::R(B)
      • S(f);OGATE,P_SPINS(f),XP(E)::P=S
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