MESON Chess Problem Database

Problem Display
PID: 178227 (8/3p4/4p3/1BNk1nK1/4p3/2Q5/8/1b6 w - - 0 1)

Grassano, Carlos A

Vratnica-64, 2008

8/3p4/4p3/1BNk1nK1/4p3/2Q5/8/1b6

#2

4 + 6

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Kf6?
      • threat
        • 2.Qe5#
      • 1...Kd6
        • 2.Qe5#
      • 1...e5
        • 2.Qxe5#
      • 1...d6
        • 2.Qc4#
      • 1...Sd4!
    • 1.Sb7?
      • threat
        • 2.Qc5#
      • 1...e5
        • 2.Qc4#
      • 1...d6
        • 2.Bc6#
      • 1...e3!
  • Keys
    • 1.Sxd7!
      • threat
        • 2.Qe5#
        • 2.Qc5#
      • 1...Kd6
        • 2.Qc5#
      • 1...e3
        • 2.Qe5#
      • 1...e5
        • 2.Qxe5#
      • 1...Sd4
        • 2.Qc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(D);S_FLIGHT
      • Threat
        • QAR1(A)
      • Vars
        • K(c);P-FLIGHT::QAB1(A)
        • P(e);::QAR1(A),XP(e)
        • P(f);SBLOCK::QAB1(A)
      • Refutation
        • S(d);
    • Try
      • S(C);
      • Threat
        • QAR1(A)
      • Vars
        • P(e);SBLOCK::QAB1(A)
        • P(f);N_GUARD::B(B)
      • Refutation
        • P(b);
  • Actual
    • S(C);XP(f)
    • Threat
      • DUALS(2)
    • Vars
      • K(c);P-FLIGHT::QAB1(A)
      • P(b);::QAR1(A)
      • P(e);::QAR1(A),XP(e)
      • S(d);::QAR1(A)
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