MESON Chess Problem Database

Problem Display
PID: 60870 (7K/8/6Q1/3PpnB1/2N1kPn1/4P3/8/3R2N1 w - - 0 1)

Nestorescu, Virgil

4th Prize, Buletin Problemistic, 1994-1995

7K/8/6Q1/3PpnB1/2N1kPn1/4P3/8/3R2N1

#2

9 + 4

4764 Probleme si studii alese 1999

SOLUTION

  • SOUND
  • Sets
    • 1...Sxe3
      • 2.Sd6#
    • 1...exf4
      • 2.Rd4#
  • Tries
    • 1.Bh6?
      • 1...Sxe3
        • 2.Sd6#
      • 1...Sxh6
        • 2.Qg2#
      • 1...exf4
        • 2.Rd4#
      • 1...Sf2
        • 2.Qg2#
      • 1...Sf6
        • 2.Qg2#
      • 1...Sh2!
  • Keys
    • 1.Qe6!
      • 1...Sgxe3
        • 2.Qxe5#
      • 1...Sfxe3
        • 2.Sd6#
      • 1...Sh2
        • 2.Qxe5#
      • 1...Sf2
        • 2.Qxe5#
      • 1...Sf6
        • 2.Qxe5#
      • 1...Sgh6
        • 2.Qxe5#
      • 1...Sg3
        • 2.Rd4#
      • 1...Sd4
        • 2.Rxd4#
      • 1...Sh4
        • 2.Rd4#
      • 1...Sd6
        • 2.Rd4#
      • 1...Sfh6
        • 2.Rd4#
      • 1...Se7
        • 2.Rd4#
      • 1...Sg7
        • 2.Rd4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 12
    • REMOVED MATES = 1
  • Sets
    • S(b);SBLOCK,XP(C)::S(D)
    • P(c);N_GUARD,XP(E)::R1(A)
  • Tries
    • Try
      • B(G);
      • Vars
        • S(b);SBLOCK,XP(C)::S(D)
        • S(b);OGATE,XB(G)::QAB(H)
        • P(c);N_GUARD,XP(E)::R1(A)
        • S(b);OGATE::QAB(H)
      • Refutation
        • S(b);
  • Actual
    • Q(H);N_PINS(d),P_PINP(c)
    • Vars
      • S(b);N_GUARD,XP(C)::QAR1(H),XP(c)
      • S(d);N_GUARD,SBLOCK,XP(C)::S(D)
      • S(b);N_GUARD::QAR1(H),XP(c)
      • S(d);N_GUARD::R1(A)
      • S(d);N_GUARD::R1(A),XS(d)
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