MESON Chess Problem Database

Problem Display
PID: 255331 (8/2n5/2K5/5B2/2k5/2N5/1Q5b/8 w - - 0 1)

Piliczewski, Bogusz

3rd HM., Astafyeva-30 JT (Lightweights) (Kudesnik), 2021

8/2n5/2K5/5B2/2k5/2N5/1Q5b/8

#2

4 + 3

SOLUTION

  • SOUND
  • Tries
    • 1.Sd1?
      • threat
        • 2.Se3#
        • 2.Qc3#
      • 1...Bg1
        • 2.Qc3#
      • 1...Bf4
        • 2.Qc3#
      • 1...Be5
        • 2.Se3#
      • 1...Sb5
        • 2.Se3#
      • 1...Sd5!
    • 1.Sa2?
      • threat
        • 2.Qc3#
        • 2.Qb4#
      • 1...Be5
        • 2.Qb4#
      • 1...Bd6
        • 2.Qc3#
      • 1...Sb5
        • 2.Qb4#
      • 1...Sa6
        • 2.Qc3#
      • 1...Sd5!
    • 1.Se2?
      • threat
        • 2.Qc3#
      • 1...Sd5
        • 2.Qb5#
      • 1...Sb5
        • 2.Qxb5#
      • 1...Be5!
    • 1.Sa4?
      • threat
        • 2.Sb6#
        • 2.Qc3#
      • 1...Bg1
        • 2.Qc3#
      • 1...Be5
        • 2.Sb6#
      • 1...Sb5
        • 2.Sb6#
      • 1...Sa8
        • 2.Qc3#
      • 1...Sd5!
    • 1.Se4?
      • threat
        • 2.Sd2#
        • 2.Qc3#
      • 1...Sd5
        • 2.Sd2#
      • 1...Bf4
        • 2.Qc3#
      • 1...Be5
        • 2.Sd2#
      • 1...Sb5
        • 2.Sd2#
      • 1...Kd3!
    • 1.Sb5?
      • threat
        • 2.Sa3#
        • 2.Qc3#
      • 1...Sd5
        • 2.Sa3#
      • 1...Be5
        • 2.Sa3#
      • 1...Bd6
        • 2.Sxd6#
        • 2.Qc3#
      • 1...Sxb5!
    • 1.Sd5?
      • threat
        • 2.Se3#
        • 2.Sb6#
        • 2.Qc3#
        • 2.Qb4#
      • 1...Bg1
        • 2.Qc3#
        • 2.Qb4#
      • 1...Bf4
        • 2.Sb6#
        • 2.Qc3#
        • 2.Qb4#
      • 1...Be5
        • 2.Se3#
        • 2.Sb6#
        • 2.Qb4#
      • 1...Bd6
        • 2.Se3#
        • 2.Sb6#
        • 2.Qc3#
      • 1...Sb5
        • 2.Se3#
        • 2.Sb6#
        • 2.Qb4#
      • 1...Sa6
        • 2.Se3#
        • 2.Sb6#
        • 2.Qc3#
      • 1...Sa8
        • 2.Se3#
        • 2.Qc3#
        • 2.Qb4#
      • 1...Sxd5!
  • Keys
    • 1.Sb1!
      • threat
        • 2.Sd2#
        • 2.Sa3#
        • 2.Qc3#
      • 1...Bf4
        • 2.Sa3#
        • 2.Qc3#
      • 1...Be5
        • 2.Sd2#
        • 2.Sa3#
      • 1...Bd6
        • 2.Sd2#
        • 2.Qc3#
      • 1...Sb5
        • 2.Sd2#
      • 1...Sd5
        • 2.Sd2#
        • 2.Sa3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);
      • Threat
        • DUALS(2)
      • Vars
        • B(a);::QAR1(A)
        • B(a);::S(B)
        • S(c);::S(B)
      • Refutation
        • S(c);
    • Try
      • S(B);
      • Threat
        • DUALS(2)
      • Vars
        • B(a);::QAR1(A)
        • S(c);::QAR1(A)
      • Refutation
        • S(c);
    • Try
      • S(B);
      • Threat
        • QAR1(A)
      • Vars
        • S(c);N_GUARD::QAB1(A)
        • S(c);N_GUARD::QAB1(A),XS(c)
      • Refutation
        • B(a);
    • Try
      • S(B);
      • Threat
        • DUALS(2)
      • Vars
        • B(a);::QAR1(A)
        • B(a);::S(B)
        • S(c);::S(B)
        • S(c);::QAR1(A)
      • Refutation
        • S(c);
    • Try
      • S(B);
      • Threat
        • DUALS(2)
      • Vars
        • S(c);::S(B)
        • B(a);::QAR1(A)
        • B(a);::S(B)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • S(B);
      • Threat
        • DUALS(2)
      • Vars
        • S(c);::S(B)
        • B(a);::S(B)
      • Refutation
        • S(c);XS(B)
    • Try
      • S(B);
      • Threat
        • DUALS(4)
      • Refutation
        • S(c);XS(B)
  • Actual
    • S(B);
    • Threat
      • DUALS(3)
    • Vars
      • S(c);::S(B)
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