MESON Chess Problem Database

Problem Display
PID: 133066 (8/6Q1/n4r2/3Pk3/2R1P1B1/6p1/6p1/4R1K1 w - - 0 1)

Ferron de la Fuente, Ernesto

L'Italia Scacchistica, 1968

8/6Q1/n4r2/3Pk3/2R1P1B1/6p1/6p1/4R1K1

#2

7 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Kf4
      • 2.e5#
    • 1...Kd6
      • 2.Qxf6#
  • Tries
    • 1.Bf5?
      • threat
        • 2.Qxg3#
      • 1...Kd6
        • 2.Qxf6#
      • 1...Kf4!
    • 1.Qg5+?
      • 1...Kd6
        • 2.Qxf6#
      • 1...Rf5!
  • Keys
    • 1.Be6!
      • 1...Kf4
        • 2.Qxf6#
      • 1...Kd6
        • 2.e5#
      • 1...Sb4
        • 2.Qc7#
      • 1...Sc5
        • 2.Qc7#
      • 1...Sc7
        • 2.Qxc7#
      • 1...Sb8
        • 2.Qc7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 2
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • K(c);N_SPINR(e),OGATE,S_FLIGHT::R(C)+P(D)
    • K(c);N_SPINR(e),S_FLIGHT::QAR2(G),XR(e)
  • Tries
    • Try
      • B(E);
      • Threat
        • QAB(G),XP(b)
      • Vars
        • K(c);N_SPINR(e),S_FLIGHT::QAR2(G),XR(e)
      • Refutation
        • K(c);N_SPINR(e),S_FLIGHT
    • Try
      • Q(G);CHECK,N_PINR(e)
      • Vars
        • K(c);S_FLIGHT::QAR2(G),XR(e)
      • Refutation
        • R(e);P_SPINR(e)
  • Actual
    • B(E);
    • Vars
      • K(c);N_SPINR(e),S_FLIGHT::QAR2(G),XR(e)
      • K(c);N_SPINR(e),OGATE,S_FLIGHT::P(D)
      • S(d);N_GUARD::QAB(G)
      • S(d);N_GUARD::QAB(G),XS(d)
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