MESON Chess Problem Database

Problem Display
PID: 103934 (8/K1QN4/3pp2B/8/1P1kP3/2N3R1/8/5b2 w - - 0 1)

Ancin, Andrej

SUV CSZTV, 1959

8/K1QN4/3pp2B/8/1P1kP3/2N3R1/8/5b2

#2

8 + 4

5454 Near Snap 2009
6490 yacpdb 2009
15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Bd3
      • 2.Be3#
    • 1...Bc4
      • 2.Qb6#
    • 1...d5
      • 2.Qc5#
  • Tries
    • 1.Qc6?
      • 1...Be2
        • 2.Sxe2#
      • 1...Bg2
        • 2.Se2#
        • 2.Sb5#
      • 1...Bd3
        • 2.Be3#
      • 1...Bh3
        • 2.Se2#
        • 2.Sb5#
      • 1...Bc4
        • 2.Qb6#
      • 1...Bb5
        • 2.Sxb5#
      • 1...d5
        • 2.Qc5#
      • 1...e5
        • 2.Qd5#
      • 1...Ba6!
  • Keys
    • 1.Se5!
      • threat
        • 2.Qxd6#
      • 1...Kxe5
        • 2.Qg7#
      • 1...dxe5
        • 2.Qc5#
      • 1...Bd3
        • 2.Sf3#
      • 1...Bc4
        • 2.Sc6#
      • 1...d5
        • 2.Be3#

Anticipated by 18784(1958)

There are these versions: 135283

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • B(a);SBLOCK::B(E)
    • B(a);SBLOCK::QAB(G)
    • P(c);N_GUARD::QAB1(G)
  • Tries
    • Try
      • Q(G);
      • Vars
        • B(a);N_GUARD::S(A),XB(a)
        • B(a);SBLOCK::B(E)
        • B(a);SBLOCK::QAB(G)
        • P(c);N_GUARD::QAB1(G)
        • P(d);N_GUARD::QAR1(G)
      • Refutation
        • B(a);
  • Actual
    • S(H);
    • Threat
      • QAR2(G),XP(c)
    • Vars
      • K(b);OGATEB,P_SPINP(c),S_FLIGHT,XS(H)::QAB(G)
      • P(c);N_GUARD,XS(H)::QAB1(G)
      • B(a);SBLOCK::S(H)
      • P(c);::B(E)
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