MESON Chess Problem Database

Problem Display
PID: 257660 (5K2/B7/5k2/1N2p3/4b1Q1/8/8/8 w - - 0 1)

Bulanov, Vladimir

64 Shakhmatnoe obozrenie, 2022

5K2/B7/5k2/1N2p3/4b1Q1/8/8/8

#2

4 + 3

SOLUTION

  • SOUND
  • Tries
    • 1.Sd6?
      • threat
        • 2.Sxe4#
        • 2.Se8#
      • 1...Bf5
        • 2.Qxf5#
      • 1...Bb1
        • 2.Se8#
      • 1...Bh1
        • 2.Se8#
        • 2.Qf5#
      • 1...Bc2
        • 2.Se8#
      • 1...Bg2
        • 2.Se8#
        • 2.Qf5#
      • 1...Bd3
        • 2.Se8#
      • 1...Bf3
        • 2.Se8#
        • 2.Qf5#
      • 1...Bd5
        • 2.Se8#
        • 2.Qf5#
      • 1...Bc6
        • 2.Qf5#
      • 1...Bb7
        • 2.Se8#
        • 2.Qf5#
      • 1...Bh7
        • 2.Se8#
      • 1...Ba8
        • 2.Se8#
        • 2.Qf5#
      • 1...Bg6!
    • 1.Sc7?
      • threat
        • 2.Se8#
      • 1...Bf5
        • 2.Qg7#
      • 1...Bg6
        • 2.Sd5#
      • 1...Bc6!
    • 1.Qg7+?
      • 1...Ke6
        • 2.Qf7#
      • 1...Kf5!
  • Keys
    • 1.Sd4!
      • threat
        • 2.Qg7#
      • 1...exd4
        • 2.Bxd4#
      • 1...Bg6
        • 2.Qh4#

FEATURES

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