MESON Chess Problem Database

Problem Display
PID: 231306 (6b1/b2r4/7R/2ppk3/4PN2/8/3Q4/K3R3 w - - 0 1)

van Dijk, Johannes

Falkirk Herald, 1927

6b1/b2r4/7R/2ppk3/4PN2/8/3Q4/K3R3

#2

6 + 6

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rf7
      • 2.Re6#
    • 1...Be6
      • 2.Rxe6#
    • 1...Bh7
      • 2.Re6#
    • 1...d4
      • 2.Sd3#
  • Tries
    • 1.Qc3+?
      • 1...d4
        • 2.Sd3#
      • 1...Kxf4!
    • 1.Qe3?
      • threat
        • 2.Sd3#
      • 1...dxe4
        • 2.Qxe4#
      • 1...Be6
        • 2.Rxe6#
      • 1...c4!
    • 1.Qb2+?
      • 1...d4
        • 2.Sd3#
      • 1...Kxf4!
  • Keys
    • 1.Se2!
      • threat
        • 2.Qf4#
      • 1...Kxe4
        • 2.Sd4#
      • 1...dxe4
        • 2.Qg5#
      • 1...Rf7
        • 2.Qxd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • R(e);S_CUTB(f)::R1(F)
    • B(f);N_GUARD::R1(F),XB(f)
    • B(f);N_GUARD::R1(F)
    • P(b);SBLOCK::S(E)
  • Tries
    • Try
      • Q(C);CHECK
      • Vars
        • P(b);P_SPINP(b)::S(E)
      • Refutation
        • K(c);S_FLIGHT,XS(E)
    • Try
      • Q(C);
      • Threat
        • S(E)
      • Vars
        • P(b);OGATE,P_SPINP(b),XP(D)::QAR1(C),XP(b)
        • B(f);N_GUARD::R1(F),XB(f)
      • Refutation
        • P(a);
    • Try
      • Q(C);CHECK
      • Vars
        • P(b);P_SPINP(b)::S(E)
      • Refutation
        • K(c);S_FLIGHT,XS(E)
  • Actual
    • S(E);
    • Threat
      • QAB1(C)
    • Vars
      • K(c);P-FLIGHT,XP(D)::R(B)+S(E)
      • P(b);SBLOCK,XP(D)::QAR2(C)
      • R(e);N_GUARD,S_CUTB(f)::QAR1(C),XP(b)
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