MESON Chess Problem Database

Problem Display
PID: 272511 (3r1N2/5p2/5B1p/3p4/5k2/8/6Q1/1B1K4 w - - 0 1)

Bulanov, Vladimir

64 Shakhmatnoe obozrenie, 2023

3r1N2/5p2/5B1p/3p4/5k2/8/6Q1/1B1K4

#2

5 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Ke3
      • 2.Qg3#
  • Tries
    • 1.Se6+?
      • 1...Ke3
        • 2.Bd4#
        • 2.Qe2#
        • 2.Qg3#
      • 1...fxe6!
    • 1.Sg6+?
      • 1...Ke3
        • 2.Qe2#
        • 2.Qg3#
      • 1...fxg6!
    • 1.Be4?
      • threat
        • 2.Qf3#
      • 1...Ke3
        • 2.Qf3#
      • 1...dxe4+!
    • 1.Bh4?
      • threat
        • 2.Qg3#
      • 1...Ke3
        • 2.Qf2#
      • 1...Ke5!
    • 1.Be5+?
      • 1...Ke3
        • 2.Qe2#
        • 2.Qg3#
      • 1...Kxe5!
    • 1.Qg4+?
      • 1...Ke3
        • 2.Bd4#
        • 2.Qg3#
      • 1...Kxg4!
  • Keys
    • 1.Bf5!
      • threat
        • 2.Qf2#
      • 1...Ke3
        • 2.Qg3#
      • 1...Kxf5
        • 2.Qf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(a);N_GUARD,S_FLIGHT::QAR2(C)
  • Tries
    • Try
      • S(E);CHECK
      • Refutation
        • P(d);XS(E)
    • Try
      • S(E);CHECK
      • Refutation
        • P(d);XS(E)
    • Try
      • B(A);
      • Threat
        • QAR1(C)
      • Vars
        • K(a);S_FLIGHT::QAR1(C)
      • Refutation
        • P(b);CHECK,XB(A)
    • Try
      • B(D);
      • Threat
        • QAB1(C)
      • Vars
        • K(a);N_GUARD,S_FLIGHT::QAB1(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(D);CHECK
      • Refutation
        • K(a);S_FLIGHT,XB(D)
    • Try
      • Q(C);CHECK
      • Refutation
        • K(a);P-FLIGHT,XQ(C)
  • Actual
    • B(A);
    • Threat
      • QAR2(C)
    • Vars
      • K(a);N_GUARD,S_FLIGHT::QAR2(C)
      • K(a);N_GUARD,P-FLIGHT,XB(A)::QAR2(C)
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