MESON Chess Problem Database

Problem Display
PID: 30511 (8/8/8/1n1Q4/8/8/1PN4K/nkBR4 w - - 0 1)

Galitzky, Aleksandr Vasilevich

Semija, 1894

8/8/8/1n1Q4/8/8/1PN4K/nkBR4

#2

6 + 3

3360 Simple Two-move Themes 1924
3310 2345 Chess Problems 1997
14666 Aleksandr Galitzky - Shakhmaty Geine (Vol 1) 2010

SOLUTION

  • SOUND
  • Sets
    • 1...Kxc2
      • 2.Qd3#
    • 1...Sa3
      • 2.Sxa3#
    • 1...Sc3
      • 2.Sa3#
    • 1...Sd4
      • 2.Sa3#
    • 1...Sd6
      • 2.Sa3#
    • 1...Sa7
      • 2.Sa3#
    • 1...Sc7
      • 2.Sa3#
  • Tries
    • 1.Qb3?
      • threat
        • 2.Bd2#
        • 2.Be3#
        • 2.Bf4#
        • 2.Bg5#
        • 2.Bh6#
      • 1...Sc3
        • 2.Sa3#
      • 1...Sxb3!
  • Keys
    • 1.b4!
      • 1...Kxc2
        • 2.Qd3#
      • 1...Sxc2
        • 2.Ba3#
      • 1...Sb3
        • 2.Qxb3#
      • 1...Sa3
        • 2.Sxa3#
      • 1...Sc3
        • 2.Sa3#
      • 1...Sd4
        • 2.Sa3#
      • 1...Sd6
        • 2.Sa3#
      • 1...Sa7
        • 2.Sa3#
      • 1...Sc7
        • 2.Sa3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(b);OGATEB,S_FLIGHT,XS(D)::QAB1(F)
    • S(c);N_GUARD::S(D),XS(c)
    • S(c);N_GUARD::S(D)
  • Tries
    • Try
      • Q(F);
      • Threat
        • DUALS(5)
      • Vars
        • S(c);N_GUARD::S(D)
      • Refutation
        • S(a);XQ(F)
  • Actual
    • P(C);
    • Vars
      • K(b);OGATEB,S_FLIGHT,XS(D)::QAB1(F)
      • S(a);SBLOCK,XS(D)::R(B)+B(A)
      • S(a);N_GUARD::QAR2(F),XS(a)
      • S(c);N_GUARD::S(D),XS(c)
      • S(c);N_GUARD::S(D)
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