MESON Chess Problem Database

Problem Display
PID: 160142 (6K1/ppbR4/q1r2pN1/1B6/1Rnnk1P1/1Q1pNp2/b2p1P2/8 w - - 0 1)

Sydenham, Colin Peter

2nd HM., Cheron MT, 1985

6K1/ppbR4/q1r2pN1/1B6/1Rnnk1P1/1Q1pNp2/b2p1P2/8

#2

9 + 13

15513 Selected Chess Problems of Colin Sydenham 2015

SOLUTION

  • SOUND
  • Sets
    • 1...Sb2
      • 2.Rbxd4#
      • 2.Rdxd4#
    • 1...Sa3
      • 2.Rbxd4#
      • 2.Rdxd4#
    • 1...Sxe3
      • 2.Rbxd4#
      • 2.Rdxd4#
    • 1...Sa5
      • 2.Rbxd4#
      • 2.Rdxd4#
    • 1...Se5
      • 2.Rbxd4#
      • 2.Rdxd4#
    • 1...Sb6
      • 2.Rbxd4#
      • 2.Rdxd4#
    • 1...Sd6
      • 2.Re7#
    • 1...Sc2
      • 2.Qxd3#
    • 1...Se2
      • 2.Qxd3#
    • 1...Sxb5
      • 2.Qxd3#
    • 1...Sf5
      • 2.Qxd3#
    • 1...Se6
      • 2.Qxd3#
  • Keys
    • 1.Sd1!
      • threat
        • 2.Sc3#
      • 1...Sxb5
        • 2.Qxd3#
      • 1...Sb2
        • 2.Rbxd4#
        • 2.Rdxd4#
      • 1...Sa3
        • 2.Rbxd4#
        • 2.Rdxd4#
      • 1...Se3
        • 2.Rbxd4#
        • 2.Rdxd4#
      • 1...Sa5
        • 2.Rbxd4#
        • 2.Rdxd4#
      • 1...Se5
        • 2.Rbxd4#
        • 2.Rdxd4#
      • 1...Sb6
        • 2.Rbxd4#
        • 2.Rdxd4#
      • 1...Sd6
        • 2.Re7#
      • 1...Se2
        • 2.Qxd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 3
  • Sets
    • S(e);N_GUARD,P_PINQ(B),P_SPINS(f),S_CUTB(m),S_CUTR(i)::R(H)
    • S(f);P_SPINS(e)::QAB1(B),XP(c)
    • S(f);P_SPINS(e),XB(F)::QAB1(B),XP(c)
  • Actual
    • S(C);
    • Threat
      • S(C)
    • Vars
      • S(f);P_SPINS(e),XB(F)::QAB1(B),XP(c)
      • S(e);N_GUARD,P_PINQ(B),P_SPINS(f),S_CUTB(m),S_CUTR(i)::R(H)
      • S(f);P_SPINS(e)::QAB1(B),XP(c)
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