MESON Chess Problem Database

Problem Display
PID: 166496 (4Br2/3Np3/8/1p5p/r4kpK/p1R4b/8/1Q6 w - - 0 1)

Basisty, Mark Borisovich

Tkachenko, Sergiy Ivanovich

Sachove umeni (Ceskoslovensky sach), 2016

4Br2/3Np3/8/1p5p/r4kpK/p1R4b/8/1Q6

#2

5 + 9

SOLUTION

  • SOUND
  • Tries
    • 1.Bg6?
      • threat
        • 2.Qc1#
      • 1...Re4
        • 2.Qxe4#
      • 1...Rf5
        • 2.Qxf5#
      • 1...Rd4!
    • 1.Qxb5?
      • threat
        • 2.Qe5#
      • 1...Ke4
        • 2.Qe5#
      • 1...e5
        • 2.Qxe5#
      • 1...Re4
        • 2.Qg5#
      • 1...Rf5
        • 2.Qxa4#
      • 1...Ra5!
  • Keys
    • 1.Qe1!
      • threat
        • 2.Qe5#
      • 1...Kf5
        • 2.Qe5#
      • 1...Re4
        • 2.Qf2#
      • 1...Rf5
        • 2.Qe3#
      • 1...e5
        • 2.Qxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(E);
      • Threat
        • QAB(A)
      • Vars
        • R(c);N_GUARD::QAR1(A),XR(c)
        • R(i);N_GUARD::QAR1(A),XR(i)
      • Refutation
        • R(c);
    • Try
      • Q(A);XP(f)
      • Threat
        • QAB1(A)
      • Vars
        • K(d);P-FLIGHT::QAR1(A)
        • P(h);::QAB1(A),XP(h)
        • R(c);SBLOCK::QAB1(A)
        • R(i);SBLOCK::QAR(A),XR(c)
      • Refutation
        • R(c);
  • Actual
    • Q(A);
    • Threat
      • QAB1(A)
    • Vars
      • K(d);P-FLIGHT::QAR1(A)
      • R(c);SBLOCK::QAR2(A)
      • R(i);SBLOCK::QAB1(A)
      • P(h);::QAB1(A),XP(h)
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