MESON Chess Problem Database

Problem Display
PID: 74935 (R1n1N3/3b4/ppk5/PR2Pp2/2BKp3/1N6/8/7Q w - - 0 1)

Junio, Noel Ferrer

Problem Online, 2006

R1n1N3/3b4/ppk5/PR2Pp2/2BKp3/1N6/8/7Q

#2

9 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Sd6
      • 2.Rxb6#
    • 1...Sa7
      • 2.Rxb6#
    • 1...Se7
      • 2.Rxb6#
    • 1...f4
      • 2.Qxe4#
    • 1...axb5
      • 2.Bd5#
    • 1...bxa5
      • 2.Sxa5#
  • Tries
    • 1.Ra7?
      • threat
        • 2.Rc7#
      • 1...Sxa7
        • 2.Rxb6#
      • 1...Bxe8!
  • Keys
    • 1.Qh7!
      • 1...Kb7
        • 2.Bd5#
      • 1...Bxe8
        • 2.Rxc8#
      • 1...axb5
        • 2.Bd5#
      • 1...bxa5
        • 2.Sxa5#
      • 1...Be6
        • 2.Qc7#
      • 1...Sd6
        • 2.Rxb6#
      • 1...Sa7
        • 2.Rxb6#
      • 1...Se7
        • 2.Rxb6#
      • 1...e3
        • 2.Qh1#
      • 1...f4
        • 2.Qxe4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • S(g);N_GUARD::R1(F),XP(d)
    • P(b);N_GUARD::QAB(A),XP(a)
    • P(c);SBLOCK,XR(F)::B(C)
    • P(d);XP(E)::S(B),XP(d)
  • Tries
    • Try
      • R(H);
      • Threat
        • R1(H)
      • Vars
        • S(g);N_GUARD,XR(H)::R1(F),XP(d)
      • Refutation
        • B(f);XS(I)
  • Actual
    • Q(A);N_PINP(a)
    • Vars
      • K(e);P_SPINB(f),P_SPINP(d),S_FLIGHT::B(C)
      • B(f);N_GUARD,XS(I)::R(H),XS(g)
      • P(c);SBLOCK,XR(F)::B(C)
      • P(d);XP(E)::S(B),XP(d)
      • B(f);OGATE::QAR1(A)
      • S(g);N_GUARD::R1(F),XP(d)
      • P(a);OGATEB::QAB(A)
      • P(b);OGATE::QAB(A),XP(a)
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