MESON Chess Problem Database

Problem Display
PID: 138666 (8/7n/1QPp4/3Pk3/4B2K/2p3P1/3P1N2/8 w - - 0 1)

Galitzky, Aleksandr Vasilevich

Moskovskie Viedomosti, 1900

8/7n/1QPp4/3Pk3/4B2K/2p3P1/3P1N2/8

#2

8 + 4

14666 Aleksandr Galitzky - Shakhmaty Geine (Vol 1) 2010

SOLUTION

  • SOUND
  • Sets
    • 1...Sf6
      • 2.d4#
    • 1...cxd2
      • 2.Qb2#
    • 1...c2
      • 2.Qb2#
  • Tries
    • 1.Qe3?
      • threat
        • 2.Sg4#
        • 2.Qxc3#
      • 1...cxd2
        • 2.Sg4#
        • 2.Qc3#
      • 1...Sf6
        • 2.Sd3#
        • 2.Qxc3#
        • 2.d4#
      • 1...c2
        • 2.Sg4#
        • 2.Qc3#
      • 1...Kf6!
    • 1.Qa5?
      • threat
        • 2.Qxc3#
      • 1...Kd4
        • 2.Qxc3#
      • 1...cxd2
        • 2.Qc3#
        • 2.Qa1#
      • 1...c2
        • 2.Qc3#
        • 2.Qa1#
      • 1...Kf6!
    • 1.Qb3?
      • threat
        • 2.Qxc3#
      • 1...Kd4
        • 2.Qxc3#
      • 1...cxd2
        • 2.Qb2#
        • 2.Qc3#
      • 1...c2
        • 2.Qb2#
        • 2.Qc3#
      • 1...Kf6!
    • 1.Qb4?
      • threat
        • 2.Sg4#
        • 2.Qxc3#
      • 1...cxd2
        • 2.Sg4#
        • 2.Qc3#
        • 2.Qb2#
      • 1...Sf6
        • 2.Sd3#
        • 2.Qxc3#
        • 2.d4#
      • 1...c2
        • 2.Sg4#
        • 2.Qc3#
        • 2.Qb2#
      • 1...Kf6!
    • 1.d3?
      • threat
        • 2.Sg4#
      • 1...Sf6
        • 2.d4#
      • 1...Kf6!
  • Keys
    • 1.Qa7!
      • 1...Kf6
        • 2.Sg4#
      • 1...cxd2
        • 2.Qa1#
      • 1...Sg5
        • 2.Qg7#
      • 1...Sf6
        • 2.d4#
      • 1...Sf8
        • 2.Qg7#
      • 1...c2
        • 2.Qa1#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 2
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • S(d);SBLOCK::P(A)
    • P(a);OGATEB,XP(A)::QAB(G)
    • P(a);OGATEB::QAB(G)
  • Tries
    • Try
      • Q(G);
      • Threat
        • DUALS(2)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(G);
      • Threat
        • QAB(G),XP(a)
      • Vars
        • K(b);S_FLIGHT::QAB1(G),XP(a)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(G);
      • Threat
        • QAB(G),XP(a)
      • Vars
        • K(b);S_FLIGHT::QAB1(G),XP(a)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(G);
      • Threat
        • DUALS(2)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • P(A);
      • Threat
        • S(B)
      • Vars
        • S(d);SBLOCK::P(A)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • Q(G);
    • Vars
      • K(b);S_FLIGHT::S(B)
      • P(a);OGATEB,XP(A)::QAB(G)
      • S(d);N_GUARD::QAB(G)
      • S(d);SBLOCK::P(A)
      • P(a);OGATEB::QAB(G)
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