MESON Chess Problem Database

Problem Display
PID: 129855 (8/8/1N2p2N/4k3/5p2/B3nP2/4K2Q/8 w - - 0 1)

Tuzar, Vaclav

Besedy lidu, 1893

8/8/1N2p2N/4k3/5p2/B3nP2/4K2Q/8

#2

6 + 4

6490 yacpdb 2009
5454 Near Snap 2018

SOLUTION

  • SOUND
  • Keys
    • 1.Qg1!
      • threat
        • 2.Qa1#
        • 2.Qg7#
      • 1...Kd4
        • 2.Qa1#
      • 1...Kf6
        • 2.Sd7#
      • 1...Sd1
        • 2.Qg7#
      • 1...Sf1
        • 2.Qg7#
      • 1...Sc2
        • 2.Qg7#
      • 1...Sg2
        • 2.Qa1#
      • 1...Sc4
        • 2.Qg7#
      • 1...Sg4
        • 2.Qa1#
      • 1...Sd5
        • 2.Sd7#
      • 1...Sf5
        • 2.Sg4#

This anticipates 64048(1910)

There are these versions: 173487

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 10
    • REMOVED MATES = 0
  • Sets
  • Actual
    • Q(B);N_PINP(b)
    • Threat
      • DUALS(2)
    • Vars
      • K(c);P_SPINS(a),S_FLIGHT::QAB(B)
      • K(c);S_FLIGHT::S(E)
      • S(a);::QAB(B)
      • S(a);SBLOCK::S(E)
      • S(a);N_GUARD,SBLOCK::S(F)
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