MESON Chess Problem Database

Problem Display
PID: 144370 (Q2n4/4N3/1P2p3/4k1P1/1N5P/B2p4/3P2K1/2n5 w - - 0 1)

Maximov, Nikolai J

British Chess Magazine, 1898

Q2n4/4N3/1P2p3/4k1P1/1N5P/B2p4/3P2K1/2n5

#2

9 + 5

5454 Near Snap 2014

SOLUTION

  • SOUND
  • Tries
    • 1.Sbc6+?
      • 1...Ke4
        • 2.Qa4#
      • 1...Kf4
        • 2.Qa4#
      • 1...Sxc6!
    • 1.Bb2+?
      • 1...Kf4
        • 2.Qf3#
      • 1...Kd6!
    • 1.Qd5+?
      • 1...Kf4
        • 2.Qd4#
      • 1...exd5!
  • Keys
    • 1.Qa4!
      • 1...Kd4
        • 2.Sbc6#
      • 1...Ke4
        • 2.Sbc6#
      • 1...Kf4
        • 2.Sxd3#
        • 2.Sbc6#
      • 1...Kd6
        • 2.Sxd3#
      • 1...Sa2
        • 2.Sxd3#
      • 1...Se2
        • 2.Sxd3#
      • 1...Sb3
        • 2.Sxd3#
      • 1...Sc6
        • 2.Sbxc6#
      • 1...Sb7
        • 2.Sbc6#
      • 1...Sf7
        • 2.Sbc6#

This anticipates 96842(1945)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);CHECK
      • Vars
        • K(c);P-FLIGHT::QAR(I)
        • K(c);S_FLIGHT::QAR(I)
      • Refutation
        • S(e);XS(D)
    • Try
      • B(C);CHECK
      • Vars
        • K(c);S_FLIGHT::QAR1(I)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(I);CHECK
      • Vars
        • K(c);S_FLIGHT::QAR2(I)
      • Refutation
        • P(d);XQ(I)
  • Actual
    • Q(I);
    • Vars
      • K(c);S_FLIGHT::QAR(I)+S(D),DCHECK
      • K(c);P-FLIGHT::QAR(I)+S(D)
      • K(c);S_FLIGHT::B(C)+S(D),XP(b)
      • S(a);N_GUARD::S(D),XP(b)
      • S(e);N_GUARD::S(D),XS(e)
      • S(e);N_GUARD::S(D)
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