MESON Chess Problem Database

Problem Display
PID: 205189 (6B1/8/4nB2/1Np1p2N/2p1k3/4pn1P/p1p1P3/Q1K2R2 w - - 0 1)

Buchwald, Julius

American Chess Bulletin, 1953

6B1/8/4nB2/1Np1p2N/2p1k3/4pn1P/p1p1P3/Q1K2R2

#2

9 + 9

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kf5
      • 2.Bh7#
    • 1...Se1
      • 2.Qxe5#
    • 1...Sg1
      • 2.Qxe5#
    • 1...Sd2
      • 2.Qxe5#
    • 1...Sh2
      • 2.Qxe5#
    • 1...Sfd4
      • 2.Sc3#
    • 1...Sh4
      • 2.Qxe5#
    • 1...Sfg5
      • 2.Qxe5#
    • 1...Sed4
      • 2.Sd6#
    • 1...Sf4
      • 2.Sd6#
      • 2.Sg3#
    • 1...Seg5
      • 2.Sd6#
    • 1...Sc7
      • 2.Sd6#
    • 1...Sg7
      • 2.Sd6#
    • 1...Sd8
      • 2.Sd6#
    • 1...Sf8
      • 2.Sd6#
  • Tries
    • 1.Sc3+?
      • 1...Kf5
        • 2.Bh7#
      • 1...Kd4!
    • 1.Sg3+?
      • 1...Kf4
        • 2.Rxf3#
        • 2.Qxe5#
      • 1...Kd5!
  • Keys
    • 1.Qxa2!
      • 1...Kd5
        • 2.Qa8#
      • 1...Kf5
        • 2.Bh7#
      • 1...c3
        • 2.Bh7#
      • 1...Se1
        • 2.Qa8#
      • 1...Sg1
        • 2.Qa8#
      • 1...Sd2
        • 2.Qa8#
      • 1...Sh2
        • 2.Qa8#
      • 1...Sfd4
        • 2.Sc3#
      • 1...Sh4
        • 2.Qa8#
      • 1...Sfg5
        • 2.Qa8#
      • 1...Sed4
        • 2.Sd6#
      • 1...Sf4
        • 2.Sg3#
      • 1...Seg5
        • 2.Qxc2#
      • 1...Sc7
        • 2.Qxc2#
      • 1...Sg7
        • 2.Qxc2#
      • 1...Sd8
        • 2.Qxc2#
      • 1...Sf8
        • 2.Qxc2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 11
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(f);P_SPINS(d),S_FLIGHT::B(I)
    • S(d);N_GUARD::QAR1(A),XP(h)
    • S(d);SBLOCK::S(F)
    • S(i);::S(F)
  • Tries
    • Try
      • S(F);CHECK
      • Vars
        • K(f);P_SPINS(d),S_FLIGHT::B(I)
      • Refutation
        • K(f);P-FLIGHT,P_SPINP(h)
    • Try
      • S(G);CHECK
      • Refutation
        • K(f);P_SPINS(i),S_FLIGHT
  • Actual
    • Q(A);XP(a)
    • Vars
      • K(f);P_SPINP(e),P_SPINS(i),S_FLIGHT::QAB(A)
      • K(f);P_SPINS(d),S_FLIGHT::B(I)
      • P(e);::B(I)
      • S(d);::QAB(A)
      • S(d);SBLOCK::S(F)
      • S(i);SBLOCK::S(F)
      • S(i);SBLOCK::S(G)
      • S(i);::QAB(A),XP(b)
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