MESON Chess Problem Database

Problem Display
PID: 241718 (1nbB1n2/1P2N3/2Pp1k1P/1KQ3Np/1p4p1/4P3/4p2q/8 w - - 0 1)

Pituk, Alexander

Magyar Sakkvilag, 1941

1nbB1n2/1P2N3/2Pp1k1P/1KQ3Np/1p4p1/4P3/4p2q/8

#2

9 + 10

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Bf5
      • 2.Qxf5#
    • 1...Bxb7
      • 2.Qf5#
    • 1...Sbd7
      • 2.Qf5#
    • 1...Se6
      • 2.Qf5#
    • 1...Sg6
      • 2.Sg8#
    • 1...Sfd7
      • 2.Qf5#
  • Tries
    • 1.Se4+?
      • 1...Ke6
        • 2.Qd5#
        • 2.Qf5#
      • 1...Kf7!
  • Keys
    • 1.Qc2!
      • threat
        • 2.Sg6#
      • 1...Qe5+
        • 2.Sd5#
      • 1...Ke5
        • 2.Qb2#
      • 1...Kxg5
        • 2.Sg8#
      • 1...Sxc6
        • 2.Sxc6#
      • 1...Bf5
        • 2.Qxf5#
      • 1...Se6
        • 2.Qf5#
      • 1...Sg6
        • 2.Sxg6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 3
  • Sets
    • B(i);N_GUARD::QAR1(C),XB(i)
    • B(i);N_GUARD,XP(G)::QAR1(C)
    • S(h);S_CUTB(i)::QAR1(C)
    • S(j);S_CUTB(i)::QAR1(C)
    • S(j);SBLOCK::B(I)+S(H),DCHECK
  • Tries
    • Try
      • S(D);CHECK
      • Refutation
        • K(g);P-FLIGHT
  • Actual
    • Q(C);
    • Threat
      • B(I)+S(H)
    • Vars
      • Q(b);CHECK,SBLOCK::B(I)+S(H),DCHECK
      • K(g);S_FLIGHT::QAB(C)
      • K(g);S_FLIGHT,XS(D)::B(I)+S(H)
      • S(h);XP(E)::B(I)+S(H),XS(h)
      • B(i);N_GUARD::QAR1(C),XB(i)
      • S(j);S_CUTB(i)::QAR1(C)
      • S(j);::B(I)+S(H),XS(j)
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Developed and maintained by Brian Stephenson.
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