MESON Chess Problem Database

Problem Display
PID: 11270 (1B6/1BN5/4P3/b1R5/QN3kpK/2R2p1P/2pn1p1P/4qn2 w - - 0 1)

Adabashev, Mark Ivanovich

Shakhist, 1937

1B6/1BN5/4P3/b1R5/QN3kpK/2R2p1P/2pn1p1P/4qn2

#2

11 + 9

15148 Sadier Collection 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Qe3
      • 2.Sd3#
    • 1...Qxe6
      • 2.Sxe6#
    • 1...Se3
      • 2.Sd3#
    • 1...Sg3
      • 2.hxg3#
  • Tries
    • 1.Sbd5+?
      • 1...Ke5
        • 2.Qf4#
      • 1...Kf5!
  • Keys
    • 1.hxg4!
      • threat
        • 2.Rf5#
      • 1...Qxe6
        • 2.Sxe6#
      • 1...Qe4
        • 2.Scd5#
      • 1...Qe5
        • 2.Sbd5#
      • 1...Se3
        • 2.Sd3#
      • 1...Sg3
        • 2.hxg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • Q(a);SBLOCK::QAR(D)+S(E),DCHECK
    • Q(a);XP(H)::B(K)+S(J),DCHECK,XQ(a)
    • S(b);SBLOCK::QAR(D)+S(E),DCHECK
    • S(b);OGATE::P(A),XS(b)
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • K(g);S_FLIGHT::QAB1(D)
      • Refutation
        • K(g);P-FLIGHT
  • Actual
    • P(C);XP(h)
    • Threat
      • R1(G)
    • Vars
      • Q(a);XP(H)::B(K)+S(J),DCHECK,XQ(a)
      • Q(a);SBLOCK::B(K)+S(J),DCHECK
      • Q(a);SBLOCK::QAR(D)+S(E),DCHECK
      • S(b);SBLOCK::QAR(D)+S(E),DCHECK
      • S(b);OGATE::P(A),XS(b)
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