MESON Chess Problem Database

Problem Display
PID: 183728 (8/8/8/8/3N1Kn1/4PQp1/5pN1/5k2 w - - 0 1)

Grassano, Carlos A

Kudesnik, 2018

8/8/8/8/3N1Kn1/4PQp1/5pN1/5k2

#2

5 + 4

SOLUTION

  • SOUND
  • Tries
    • 1.Kxg3?
      • threat
        • 2.Qd1#
      • 1...Sxe3
        • 2.Qxf2#
      • 1...Kg1!
    • 1.Se1?
      • threat
        • 2.Qh1#
      • 1...Kxe1
        • 2.Qe2#
      • 1...Kg1
        • 2.Qg2#
      • 1...g2!
  • Keys
    • 1.Sh4!
      • threat
        • 2.Qd1#
        • 2.Qh1#
      • 1...Ke1
        • 2.Qe2#
      • 1...Kg1
        • 2.Qg2#
      • 1...Sxe3
        • 2.Qh1#
      • 1...g2
        • 2.Qd1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(E);S_FLIGHT,XP(c)
      • Threat
        • QAR2(C)
      • Vars
        • S(d);N_GUARD,XP(B)::QAR1(C),XP(b)
      • Refutation
        • K(a);N_SPINP(b),P-FLIGHT
    • Try
      • S(A);
      • Threat
        • QAR2(C)
      • Vars
        • K(a);N_SPINP(b),P-FLIGHT,XS(A)::QAR1(C)
        • K(a);N_SPINP(b),P-FLIGHT::QAR1(C)
      • Refutation
        • P(c);
  • Actual
    • S(A);
    • Threat
      • DUALS(2)
    • Vars
      • K(a);N_SPINP(b),P-FLIGHT::QAR1(C)
      • S(d);XP(B)::QAR2(C)
      • P(c);::QAR2(C)
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