MESON Chess Problem Database

Problem Display
PID: 153754 (5B2/8/6p1/7k/8/3p3K/3Q4/2b5 w - - 0 1)

Amirov, Talip Khasanovich

Vestnik, 1983

5B2/8/6p1/7k/8/3p3K/3Q4/2b5

#2

3 + 4

15148 Sadier Collection 2015

SOLUTION

  • SOUND
  • Sets
    • 1...Bb2
      • 2.Qh6#
    • 1...Ba3
      • 2.Qh6#
  • Tries
    • 1.Qf4?
      • threat
        • 2.Qg4#
        • 2.Qh4#
      • 1...g5
        • 2.Qf7#
      • 1...Bxf4!
    • 1.Qe2+?
      • 1...Kg5
        • 2.Qe5#
      • 1...dxe2!
    • 1.Qf2?
      • threat
        • 2.Qh4#
      • 1...Bg5
        • 2.Qf3#
      • 1...g5
        • 2.Qf7#
      • 1...Kg5!
  • Keys
    • 1.Qe1!
      • threat
        • 2.Qh4#
      • 1...Kg5
        • 2.Qe5#
      • 1...Bg5
        • 2.Qd1#
      • 1...g5
        • 2.Qe8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • B(a);N_GUARD::QAR1(A)
  • Tries
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • P(d);OGATEB,SBLOCK::QAB(A)
      • Refutation
        • B(a);XQ(A)
    • Try
      • Q(A);CHECK
      • Vars
        • K(c);P-FLIGHT::QAR2(A)
      • Refutation
        • P(b);XQ(A)
    • Try
      • Q(A);
      • Threat
        • QAR1(A)
      • Vars
        • B(a);SBLOCK::QAB(A)
        • P(d);OGATEB,SBLOCK::QAB(A)
      • Refutation
        • K(c);P-FLIGHT
  • Actual
    • Q(A);
    • Threat
      • QAR1(A)
    • Vars
      • K(c);P-FLIGHT::QAR2(A)
      • B(a);SBLOCK::QAB(A)
      • P(d);OGATEB,SBLOCK::QAB(A)
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