MESON Chess Problem Database

Problem Display
PID: 193380 (6Q1/8/3pNp2/3nkr2/8/1B2b3/1K1PR3/8 w - - 0 1)

van Dijk, Johannes

Algemeen Handelsblad, 1914

6Q1/8/3pNp2/3nkr2/8/1B2b3/1K1PR3/8

#2

6 + 6

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Sb4
      • 2.Rxe3#
    • 1...Sf4
      • 2.Rxe3#
    • 1...Sb6
      • 2.Rxe3#
    • 1...Sc7
      • 2.Rxe3#
    • 1...Se7
      • 2.Rxe3#
  • Keys
    • 1.Qa8!
      • threat
        • 2.Qxd5#
      • 1...Ke4
        • 2.Rxe3#
      • 1...Kxe6
        • 2.Qe8#
      • 1...Sc3
        • 2.d4#
      • 1...Sb4
        • 2.Rxe3#
        • 2.d4#
      • 1...Sf4
        • 2.Rxe3#
        • 2.d4#
      • 1...Sb6
        • 2.Rxe3#
        • 2.d4#
      • 1...Sc7
        • 2.Rxe3#
        • 2.d4#
      • 1...Se7
        • 2.Rxe3#
        • 2.d4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 5
  • Sets
    • S(b);N_GUARD::R(C),XB(a)
  • Actual
    • Q(F);
    • Threat
      • QAR1(F),XS(b)
    • Vars
      • K(c);P-FLIGHT,P_SPINS(b)::R1(C),XB(a)
      • K(c);OGATEB,P-FLIGHT,P_SPINS(b),XS(E)::QAR2(F)
      • S(b);::P(B)
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