MESON Chess Problem Database

Problem Display
PID: 184376 (8/3p4/5p2/1P1pkB2/1K1NNp2/8/8/4Q3 w - - 0 1)

Solomentseva, Taisa

Kudesnik, 2018

8/3p4/5p2/1P1pkB2/1K1NNp2/8/8/4Q3

#2

6 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd4
      • 2.Qc3#
  • Tries
    • 1.Kc3?
      • 1...f3
        • 2.Qg3#
      • 1...d6
        • 2.Sd2#
        • 2.Sf2#
        • 2.Sg3#
        • 2.Sc5#
        • 2.Sg5#
      • 1...dxe4!
    • 1.Sd2+?
      • 1...Kxd4
        • 2.Sb3#
        • 2.Sf3#
      • 1...Kd6!
    • 1.Sf2+?
      • 1...Kxd4
        • 2.Qc3#
      • 1...Kd6!
    • 1.Sg3+?
      • 1...Kxd4
        • 2.Qc3#
      • 1...Kd6!
    • 1.Sc5+?
      • 1...Kxd4
        • 2.Sb3#
        • 2.Qc3#
      • 1...Kd6!
    • 1.Sg5+?
      • 1...Kxd4
        • 2.Sf3#
        • 2.Qc3#
      • 1...Kd6!
    • 1.Sd6+?
      • 1...Kxd4
        • 2.Qc3#
      • 1...Kxd6!
    • 1.Sxf6+?
      • 1...Kxd4
        • 2.Qc3#
      • 1...Kd6
        • 2.Se8#
      • 1...Kxf6!
  • Keys
    • 1.Kc5!
      • threat
        • 2.Sd2#
        • 2.Sf2#
        • 2.Sc3#
        • 2.Sg3#
        • 2.Sg5#
        • 2.Sd6#
      • 1...d6+
        • 2.Sxd6#
      • 1...dxe4
        • 2.Qxe4#
      • 1...f3
        • 2.Qg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • K(c);OGATEB,S_FLIGHT,XS(C)::QAB1(A)
  • Tries
    • Try
      • K(B);S_FLIGHT
      • Vars
        • P(a);OGATEB::QAB(A)
      • Refutation
        • P(b);P_SPINP(b),XS(D)
    • Try
      • S(D);CHECK
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • S(D);CHECK
      • Vars
        • K(c);OGATEB,S_FLIGHT,XS(C)::QAB1(A)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • S(D);CHECK
      • Vars
        • K(c);OGATEB,S_FLIGHT,XS(C)::QAB1(A)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • S(D);CHECK
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • S(D);CHECK
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • S(D);CHECK
      • Vars
        • K(c);OGATEB,S_FLIGHT,XS(C)::QAB1(A)
      • Refutation
        • K(c);S_FLIGHT,XS(D)
    • Try
      • S(D);CHECK,XP(d)
      • Vars
        • K(c);OGATEB,S_FLIGHT,XS(C)::QAB1(A)
        • K(c);S_FLIGHT::S(D)
      • Refutation
        • K(c);S_FLIGHT,XS(D)
  • Actual
    • K(B);S_FLIGHT
    • Threat
      • DUALS(6)
    • Vars
      • P(e);CHECK::QAR(A)+S(D),XP(e)
      • P(b);OGATE,P_SPINP(b),XS(D)::QAR1(A),XP(b)
      • P(a);OGATEB::QAB(A)
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