MESON Chess Problem Database

Problem Display
PID: 4874 (8/2nQ1N2/8/4P3/4kp2/8/B1P2PP1/2n2K2 w - - 0 1)

Galitzky, Aleksandr Vasilevich

HM., Shakhmatnoe obozrenie, 1892

8/2nQ1N2/8/4P3/4kp2/8/B1P2PP1/2n2K2

#2

8 + 4

5501 Chess Cameos 1936
16265 The Two-move Chess Problem in the Soviet Union 1923-1943 1943
3310 2345 Chess Problems 1997
3242 BCPS Rapid Solving (Cheltenham) 2001
14666 Aleksandr Galitzky - Shakhmaty Geine (Vol 1) 2010

SOLUTION

  • SOUND
  • Sets
    • 1...Sxa2
      • 2.Qd3#
    • 1...Se2
      • 2.Qd3#
    • 1...Sb3
      • 2.Qd3#
    • 1...Sd3
      • 2.Qxd3#
      • 2.cxd3#
    • 1...f3
      • 2.Qg4#
  • Tries
    • 1.Be6?
      • threat
        • 2.Bf5#
        • 2.Qa4#
      • 1...Sd5
        • 2.Qxd5#
      • 1...f3
        • 2.Qa4#
      • 1...Sa2
        • 2.Bf5#
        • 2.Qd3#
      • 1...Se2
        • 2.Bf5#
        • 2.Qd3#
      • 1...Sb3
        • 2.Bf5#
        • 2.Qd3#
      • 1...Sd3
        • 2.Bf5#
        • 2.Qxd3#
        • 2.cxd3#
      • 1...Sb5
        • 2.Bf5#
        • 2.Qd5#
      • 1...Sa6
        • 2.Bf5#
        • 2.Qd5#
      • 1...Sxe6!
  • Keys
    • 1.g4!
      • 1...Kf3
        • 2.Sg5#
      • 1...Sxa2
        • 2.Qd3#
      • 1...fxg4 ep
        • 2.Qg4#
      • 1...Sd5
        • 2.Qxd5#
      • 1...Sb5
        • 2.Qd5#
      • 1...Se2
        • 2.Qd3#
      • 1...Sb3
        • 2.Qd3#
      • 1...Sd3
        • 2.Qxd3#
      • 1...Sa6
        • 2.Qd5#
      • 1...Se6
        • 2.Qd5#
      • 1...Sa8
        • 2.Qd5#
      • 1...Se8
        • 2.Qd5#
      • 1...f3
        • 2.Qa4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
    • S(a);N_GUARD,XB(B)::QAB1(G)
    • S(a);N_GUARD::QAB1(G)
    • P(c);OGATEB::QAR2(G)
  • Tries
    • Try
      • B(B);
      • Threat
        • DUALS(2)
      • Vars
        • S(d);N_GUARD::QAB1(G),XS(d)
        • P(c);::QAR(G)
      • Refutation
        • S(d);XB(B)
  • Actual
    • P(E);
    • Vars
      • K(b);S_FLIGHT::S(H)
      • S(a);N_GUARD,XB(B)::QAB1(G)
      • P(c);EP,OGATE,XP(E)::QAR2(G)
      • S(d);N_GUARD::QAB1(G),XS(d)
      • S(d);N_GUARD::QAB1(G)
      • S(a);N_GUARD::QAB1(G)
      • S(a);N_GUARD::QAB1(G),XS(a)
      • P(c);SBLOCK::QAR(G)
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