MESON Chess Problem Database

Problem Display
PID: 231042 (8/3K4/8/3k1n2/8/2Q5/3N1P2/8 w - - 0 1)

Abdullayev, Suleyman

ChessStar, 2018

8/3K4/8/3k1n2/8/2Q5/3N1P2/8

#2

4 + 2

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Sb3?
      • 1...Sd4
        • 2.Qxd4#
      • 1...Se3
        • 2.Qd4#
      • 1...Sg3
        • 2.Qd4#
      • 1...Sh4
        • 2.Qd4#
      • 1...Sd6
        • 2.Qd4#
      • 1...Sh6
        • 2.Qd4#
      • 1...Se7
        • 2.Qd4#
      • 1...Sg7
        • 2.Qd4#
      • 1...Ke4!
    • 1.Sf3?
      • threat
        • 2.Qc6#
      • 1...Sd4
        • 2.Qxd4#
      • 1...Se7
        • 2.Qd4#
      • 1...Ke4!
    • 1.Qb4?
      • 1...Se3
        • 2.Qd6#
      • 1...Sg3
        • 2.Qd6#
      • 1...Sd4
        • 2.Qd6#
      • 1...Sh4
        • 2.Qd6#
      • 1...Sd6
        • 2.Qxd6#
      • 1...Sh6
        • 2.Qd6#
      • 1...Se7
        • 2.Qd6#
      • 1...Sg7
        • 2.Qd6#
      • 1...Ke5!
    • 1.Qf6?
      • 1...Se3
        • 2.Qd6#
      • 1...Sg3
        • 2.Qd6#
      • 1...Sd4
        • 2.Qd6#
      • 1...Sh4
        • 2.Qd6#
      • 1...Sd6
        • 2.Qxd6#
      • 1...Sh6
        • 2.Qd6#
      • 1...Se7
        • 2.Qd6#
      • 1...Sg7
        • 2.Qd6#
      • 1...Kc5!
    • 1.Qc7?
      • 1...Sd6
        • 2.Qxd6#
      • 1...Se3
        • 2.Qd6#
      • 1...Sg3
        • 2.Qd6#
      • 1...Sd4
        • 2.Qd6#
      • 1...Sh4
        • 2.Qd6#
      • 1...Sh6
        • 2.Qd6#
      • 1...Se7
        • 2.Qd6#
      • 1...Sg7
        • 2.Qd6#
      • 1...Kd4!
  • Keys
    • 1.f4!
      • threat
        • 2.Qe5#
        • 2.Qc4#
      • 1...Se3
        • 2.Qe5#
      • 1...Sd4
        • 2.Qc4#
      • 1...Sd6
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(A);
      • Vars
        • S(b);N_GUARD::QAR1(C),XS(b)
        • S(b);N_GUARD::QAR1(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(A);
      • Threat
        • QAB1(C)
      • Vars
        • S(b);N_GUARD::QAR1(C),XS(b)
        • S(b);N_GUARD::QAR1(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(C);
      • Vars
        • S(b);N_GUARD::QAR1(C)
        • S(b);N_GUARD,SBLOCK::QAR1(C)
        • S(b);N_GUARD::QAR1(C),XS(b)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(C);
      • Vars
        • S(b);N_GUARD::QAR1(C)
        • S(b);N_GUARD,SBLOCK::QAR1(C)
        • S(b);N_GUARD::QAR1(C),XS(b)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(C);
      • Vars
        • S(b);N_GUARD::QAR1(C),XS(b)
        • S(b);N_GUARD::QAR1(C)
        • S(b);N_GUARD,SBLOCK::QAR1(C)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • P(B);
    • Threat
      • DUALS(2)
    • Vars
      • S(b);::QAR1(C)
      • S(b);::QAB1(C)
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