MESON Chess Problem Database

Problem Display
PID: 93154 (7Q/5N2/P3pp2/8/1P2k1p1/1P1pP1p1/3P2K1/8 w - - 0 1)

Cimburek, Ladislav

Schackvarlden, 1929

7Q/5N2/P3pp2/8/1P2k1p1/1P1pP1p1/3P2K1/8

#2

8 + 6

6490 yacpdb 2009
5454 Near Snap 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kd5
      • 2.Qa8#
    • 1...Kf5
      • 2.Qh7#
    • 1...f5
      • 2.Qd4#
      • 2.Qe5#
      • 2.Qa8#
  • Tries
    • 1.Kxg3?
      • 1...Kd5
        • 2.Qh1#
        • 2.Qa8#
      • 1...Kf5
        • 2.Qh7#
      • 1...f5
        • 2.Qd4#
        • 2.Qe5#
        • 2.Qh1#
        • 2.Qa8#
      • 1...e5!
    • 1.Qxf6?
      • threat
        • 2.Qe5#
        • 2.Qxe6#
      • 1...e5
        • 2.Qxe5#
      • 1...Kd5!
    • 1.Qh1?
      • 1...Kd5
        • 2.Kxg3#
      • 1...Kf5
        • 2.Qh7#
      • 1...f5
        • 2.Kxg3#
      • 1...e5!
    • 1.Qd8?
      • 1...Kf5
        • 2.Qxd3#
      • 1...f5
        • 2.Qd4#
        • 2.Qa8#
      • 1...e5!
    • 1.a7?
      • 1...Kd5
        • 2.Qa8#
        • 2.a8Q#
        • 2.a8B#
      • 1...Kf5
        • 2.Qh7#
      • 1...f5
        • 2.Qd4#
        • 2.Qe5#
        • 2.Qa8#
        • 2.a8Q#
        • 2.a8B#
      • 1...e5!
  • Keys
    • 1.Qg8!
      • 1...Kd5
        • 2.Qa8#
      • 1...Kf5
        • 2.Qh7#
      • 1...e5
        • 2.Sd6#
      • 1...f5
        • 2.Qa8#

Anticipated by 78154(1897), 161433(1897), 184792(1908)

This anticipates 71798(1952)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(c);S_FLIGHT::QAB(H)
  • Tries
    • Try
      • K(B);P-FLIGHT,XP(b)
      • Vars
        • K(c);S_FLIGHT::QAB(H)
      • Refutation
        • P(e);
    • Try
      • Q(H);XP(f)
      • Threat
        • DUALS(2)
      • Vars
        • P(e);::QAR1(H),XP(e)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(H);
      • Vars
        • K(c);S_FLIGHT::QAB(H)+K(B),XP(b)
        • K(c);S_FLIGHT::QAB(H)
        • P(f);SBLOCK::QAB(H)+K(B),XP(b)
      • Refutation
        • P(e);
    • Try
      • Q(H);
      • Vars
        • K(c);S_FLIGHT::QAB(H),XP(a)
      • Refutation
        • P(e);
    • Try
      • P(F);
      • Vars
        • K(c);S_FLIGHT::QAB(H)
      • Refutation
        • P(e);
  • Actual
    • Q(H);
    • Vars
      • K(c);S_FLIGHT::QAB(H)
      • P(e);SBLOCK::S(G)
      • P(f);SBLOCK::QAB(H)
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