MESON Chess Problem Database

Problem Display
PID: 32436 (1n2K1B1/1NNp1Rp1/3P3b/7b/ppk5/2B2R2/p3P3/2Q5 w - - 0 1)

Termaat, Nicolaas Ljsbrand Johanne

De Problemist, 1928

1n2K1B1/1NNp1Rp1/3P3b/7b/ppk5/2B2R2/p3P3/2Q5

#2

10 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Kb3
      • 2.Sa5#
    • 1...Bxf3
      • 2.Rxf3#
      • 2.Rf4#
    • 1...Bg4
      • 2.R7f4#
      • 2.R7f5#
    • 1...Bxf7+
      • 2.Bxf7#
    • 1...bxc3
      • 2.Qxc3#
    • 1...g5
      • 2.Ba1#
      • 2.Bb2#
      • 2.Be5#
      • 2.Bf6#
      • 2.Bg7#
      • 2.Bh8#
    • 1...g6
      • 2.R7f4#
      • 2.R7f5#
      • 2.R7f6#
      • 2.Rxd7#
      • 2.Re7#
      • 2.Rg7#
      • 2.Rh7#
      • 2.Rf8#
  • Tries
    • 1.Rf4+?
      • 1...Kb3
        • 2.Sa5#
        • 2.Sc5#
        • 2.Rxb4#
        • 2.Qb2#
      • 1...Bxf4!
  • Keys
    • 1.Kf8!
      • threat
        • 2.R7f4#
      • 1...g5+
        • 2.Bg7#
      • 1...g6+
        • 2.Rg7#
      • 1...Kb3
        • 2.Sa5#
      • 1...Bxf7
        • 2.Bxf7#
      • 1...Bf4
        • 2.R7xf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • K(d);S_FLIGHT::S(F)
    • B(e);CHECK,OGATE,P_SPINB(e),XR(H)::B(J),XB(e)
    • P(c);OGATE,P_SPINP(c),XB(C)::QAR1(A),XP(c)
  • Tries
    • Try
      • R(D);CHECK
      • Refutation
        • B(f);XR(D)
  • Actual
    • K(I);N_SPINR(H),P-FLIGHT
    • Threat
      • B(J)+R(H),DCHECK
    • Vars
      • P(h);CHECK,S_CUTB(f)::QAR(A)+B(C)
      • P(h);CHECK,S_CUTB(e)::B(J)+R(H)
      • K(d);S_FLIGHT::S(F)
      • B(e);OGATE,P_SPINB(e),XR(H)::B(J),XB(e)
      • B(f);::B(J)+R(H),DCHECK,XB(f)
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Developed and maintained by Brian Stephenson.
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