MESON Chess Problem Database

Problem Display
PID: 231871 (8/B4K2/4N3/8/2N1k3/8/3Q2b1/8 w - - 0 1)

Bulanov, Vladimir

Kudesnik, 2015

8/B4K2/4N3/8/2N1k3/8/3Q2b1/8

#2

5 + 2

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kf5
      • 2.Qf4#
  • Tries
    • 1.Sd6+?
      • 1...Ke5
        • 2.Qd4#
      • 1...Kf3!
    • 1.Qe3+?
      • 1...Kf5
        • 2.Qf4#
      • 1...Kd5!
    • 1.Qe2+?
      • 1...Kf5
        • 2.Sd6#
      • 1...Kd5!
    • 1.Qxg2+?
      • 1...Kf5
        • 2.Qf3#
        • 2.Qg6#
      • 1...Kd3!
    • 1.Qd4+?
      • 1...Kf5
        • 2.Se3#
        • 2.Sd6#
        • 2.Qf4#
      • 1...Kf3!
  • Keys
    • 1.Se3!
      • threat
        • 2.Qd5#
      • 1...Kf3
        • 2.Qxg2#
      • 1...Ke5
        • 2.Qd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • K(b);S_FLIGHT::QAR1(A)
  • Tries
    • Try
      • S(B);CHECK
      • Vars
        • K(b);P-FLIGHT::QAB1(A)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);S_FLIGHT::QAR1(A)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);S_FLIGHT::S(B)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(A);CHECK,XB(a)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • S(B);
    • Threat
      • QAB1(A)
    • Vars
      • K(b);S_FLIGHT::QAB1(A),XB(a)
      • K(b);P-FLIGHT::QAB1(A)
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