MESON Chess Problem Database

Problem Display
PID: 200072 (5N2/P4N2/3R3p/4pP1r/1Kp1kpR1/4p1PP/BBp1P3/2r5 w - - 0 1)

Petite, Efren

The Macedonian Problemist, 2001

5N2/P4N2/3R3p/4pP1r/1Kp1kpR1/4p1PP/BBp1P3/2r5

#2

12 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Rxf5
      • 2.a8Q#
      • 2.a8B#
  • Tries
    • 1.Rd5?
      • threat
        • 2.Rxe5#
      • 1...Kxd5
        • 2.a8Q#
        • 2.a8B#
      • 1...Kxf5
        • 2.Rxf4#
      • 1...c3
        • 2.Sd6#
      • 1...Rxf5!
  • Keys
    • 1.Re6!
      • threat
        • 2.Rxe5#
      • 1...Kd5
        • 2.a8Q#
        • 2.a8B#
      • 1...Kxf5
        • 2.Sd6#
      • 1...Rxf5
        • 2.a8Q#
        • 2.a8B#
      • 1...c3
        • 2.Rxf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • R(h);SBLOCK,XP(H)::P=Q
  • Tries
    • Try
      • R(I);
      • Threat
        • R1(I),XP(g)
      • Vars
        • K(e);N_SPINP(f),P_SPINP(d),S_FLIGHT,XR(I)::P=Q
        • K(e);N_SPINP(f),P_SPINP(g),S_FLIGHT,XP(H)::R1(G),XP(f)
        • P(d);::S(K)
      • Refutation
        • R(h);XP(H)
  • Actual
    • R(I);
    • Threat
      • R1(I),XP(g)
    • Vars
      • K(e);N_SPINP(f),P_SPINP(d),S_FLIGHT::P=Q
      • K(e);N_SPINP(f),S_FLIGHT,XP(H)::S(K)
      • R(h);SBLOCK,XP(H)::P=Q
      • P(d);::R1(G),XP(f)
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