MESON Chess Problem Database

Problem Display
PID: 80017 (7r/8/8/1pR1P3/1K1kp2R/3b4/3P1N2/7B w - - 0 1)

di Scala, Pascal

La Cle, 1970

7r/8/8/1pR1P3/1K1kp2R/3b4/3P1N2/7B

#2

7 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Bf1
      • 2.Rxe4#
    • 1...Be2
      • 2.Rxe4#
    • 1...Bc4
      • 2.Rxe4#
  • Keys
    • 1.Bxe4!
      • threat
        • 2.Rd5#
      • 1...Bxe4
        • 2.Rxe4#
      • 1...Rd8
        • 2.Bxd3#
      • 1...Bc4
        • 2.Bh7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • B(a);N_GUARD::R1(E),XP(c)
  • Actual
    • B(A);XP(c)
    • Threat
      • R1(F)
    • Vars
      • B(a);OGATE,P_SPINB(a),XB(A)::R1(E),XB(a)
      • R(e);N_GUARD::R(E)+B(A),XB(a)
      • B(a);N_GUARD::R(E)+B(A)
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