MESON Chess Problem Database

Problem Display
PID: 151837 (B7/4p2q/2p1N3/8/Q3Pp2/3n1k2/3p4/1K1N2R1 w - - 0 1)

Popescu, Adriana

Popescu, Pulu

The Problemist, 2013

B7/4p2q/2p1N3/8/Q3Pp2/3n1k2/3p4/1K1N2R1

#2

7 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Ke2
      • 2.Sd4#
  • Tries
    • 1.Qc4?
      • threat
        • 2.Qxd3#
      • 1...Ke2
        • 2.Sd4#
      • 1...Sc1
        • 2.Sg5#
      • 1...Se1
        • 2.Sg5#
      • 1...Sb2
        • 2.Sg5#
      • 1...Sf2
        • 2.Sg5#
      • 1...Sb4
        • 2.Sg5#
      • 1...Sc5
        • 2.Sg5#
      • 1...Se5
        • 2.Sg5#
      • 1...Qxe4!
  • Keys
    • 1.Qb5!
      • threat
        • 2.Qxd3#
      • 1...Ke2
        • 2.Sd4#
      • 1...Kxe4
        • 2.Bxc6#
      • 1...Qxe4
        • 2.Qh5#
      • 1...cxb5
        • 2.Sd4#
      • 1...Sc1
        • 2.Sg5#
      • 1...Se1
        • 2.Sg5#
      • 1...Sb2
        • 2.Sg5#
      • 1...Sf2
        • 2.Sg5#
      • 1...Sb4
        • 2.Sg5#
      • 1...Sc5
        • 2.Sg5#
      • 1...Se5
        • 2.Sg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 10
    • REMOVED MATES = 0
  • Sets
    • K(c);S_FLIGHT::S(F)
  • Tries
    • Try
      • Q(D);
      • Threat
        • QAR2(D),XS(b)
      • Vars
        • K(c);P_SPINS(b),S_FLIGHT::S(F)
        • S(b);P_PINP(E)::S(F)
      • Refutation
        • Q(g);XP(E)
  • Actual
    • Q(D);
    • Threat
      • QAR2(D),XS(b)
    • Vars
      • K(c);P_SPINS(b),S_FLIGHT::S(F)
      • K(c);OGATEB,P_SPINP(e),S_FLIGHT,XP(E)::B(G),XP(e)
      • Q(g);N_GUARD,SBLOCK,XP(E)::QAB(D)
      • P(e);XQ(D)::S(F)
      • S(b);P_PINP(E)::S(F)
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