MESON Chess Problem Database

Problem Display
PID: 190250 (4B3/3pp1QK/n3Pp1P/1P1N3R/P1k3Pp/1Np1P3/2P5/8 w - - 0 1)

Sardella, Giuseppe

Best Problems, 2019

4B3/3pp1QK/n3Pp1P/1P1N3R/P1k3Pp/1Np1P3/2P5/8

#2

13 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Sb4
      • 2.Sb6#
    • 1...Sc5
      • 2.Sa5#
    • 1...f5
      • 2.Qd4#
  • Tries
    • 1.Qxf6?
      • threat
        • 2.Qxc3#
        • 2.Qd4#
        • 2.Qf1#
        • 2.Qf4#
      • 1...Sb4
        • 2.Sb6#
        • 2.Qxc3#
        • 2.Qd4#
        • 2.Qf4#
      • 1...Sc5
        • 2.Sa5#
        • 2.Qxc3#
        • 2.Qd4#
      • 1...exf6!
    • 1.Qg6?
      • threat
        • 2.Qd3#
        • 2.Qe4#
      • 1...Sb4
        • 2.Sb6#
        • 2.Qe4#
      • 1...Sc5
        • 2.Sa5#
      • 1...f5!
    • 1.Qxe7?
      • threat
        • 2.Sa5#
        • 2.Sb6#
      • 1...f5
        • 2.Sb6#
      • 1...Sc5
        • 2.Sa5#
        • 2.Qxc5#
      • 1...d6!
    • 1.bxa6?
      • 1...dxe6
        • 2.Bb5#
      • 1...f5
        • 2.Qd4#
      • 1...d6
        • 2.Bb5#
      • 1...h3!
  • Keys
    • 1.Bg6!
      • threat
        • 2.Bd3#
      • 1...f5
        • 2.Qd4#
      • 1...Sb4
        • 2.Sb6#
      • 1...Sc5
        • 2.Sa5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • S(d);SBLOCK::S(G)
    • S(d);SBLOCK::S(B)
    • P(e);OGATE::QAR1(K)
  • Tries
    • Try
      • Q(K);XP(e)
      • Threat
        • DUALS(4)
      • Refutation
        • P(g);XQ(K)
    • Try
      • Q(K);
      • Threat
        • DUALS(2)
      • Vars
        • S(d);SBLOCK::S(B)
      • Refutation
        • P(e);
    • Try
      • Q(K);XP(g)
      • Threat
        • DUALS(2)
      • Vars
        • P(e);::S(G)
      • Refutation
        • P(f);
    • Try
      • P(F);XS(d)
      • Vars
        • P(f);OGATE,XP(I)::B(M)
        • P(e);OGATE::QAR1(K)
        • P(f);OGATE::B(M)
      • Refutation
        • P(c);
  • Actual
    • B(M);
    • Threat
      • B(M)
    • Vars
      • P(e);OGATE::QAR1(K)
      • S(d);SBLOCK::S(G)
      • S(d);SBLOCK::S(B)
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