MESON Chess Problem Database

Problem Display
PID: 9515 (b6n/K3RP2/QP2Bnp1/8/1R1Pkp2/2prbp2/P2q1r2/8 w - - 0 1)

van Dijk, Johannes

2nd Prize, Barmen, 1905

b6n/K3RP2/QP2Bnp1/8/1R1Pkp2/2prbp2/P2q1r2/8

#2

9 + 12

SOLUTION

  • SOUND
  • Tries
    • 1.Qb7+?
      • 1...Sd5
        • 2.Bh3#
        • 2.Bg4#
        • 2.Bd7#
        • 2.Bc8#
      • 1...Bxb7!
  • Keys
    • 1.Qc8!
      • threat
        • 2.Bb3#
      • 1...Qxa2+
        • 2.Bxa2#
      • 1...Rxd4
        • 2.Bc4#
      • 1...Sxf7
        • 2.Bxf7#
      • 1...Bd5
        • 2.Bf5#
      • 1...Sg4
        • 2.Qxa8#
      • 1...Sd5
        • 2.Bf5#
      • 1...Sd7
        • 2.Qxa8#
      • 1...Sg8
        • 2.Qxa8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(D);CHECK
      • Refutation
        • B(k);XQ(D)
  • Actual
    • Q(D);
    • Threat
      • R(H)+B(F)
    • Vars
      • Q(a);CHECK,OGATE,XP(A)::R(H)+B(F),XQ(a)
      • R(d);P_SPINR(d),SBLOCK,XP(C)::R(H)+B(F)
      • S(l);OGATE,XP(I)::R(H)+B(F),XS(l)
      • B(k);SBLOCK::R(H)+B(F),DCHECK
      • S(i);N_GUARD::QAB(D),XB(k)
      • S(i);SBLOCK::R(H)+B(F),DCHECK
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