MESON Chess Problem Database

Problem Display
PID: 69071 (K2n4/3N4/5Q2/3kN3/R7/3r4/3n1b2/BB1R4 w - - 0 1)

Lewis, Sally

HM., Vodka Ty., 2006

K2n4/3N4/5Q2/3kN3/R7/3r4/3n1b2/BB1R4

#2

8 + 5

56 The Problemist 2006

SOLUTION

  • SOUND
  • Sets
    • 1...Ra3
      • 2.Be4#
    • 1...Rb3
      • 2.Be4#
    • 1...Rc3
      • 2.Be4#
    • 1...Re3
      • 2.Rd4#
      • 2.Ra5#
    • 1...Rf3
      • 2.Be4#
    • 1...Rg3
      • 2.Be4#
    • 1...Rh3
      • 2.Be4#
    • 1...Rd4
      • 2.Ra5#
    • 1...Sf1
      • 2.Ba2#
    • 1...Sf3
      • 2.Ba2#
    • 1...Se4
      • 2.Ba2#
    • 1...Sc6
      • 2.Qxc6#
    • 1...Sb7
      • 2.Qc6#
    • 1...Sf7
      • 2.Qc6#
  • Tries
    • 1.Ba2+?
      • 1...Rb3
        • 2.Bxb3#
      • 1...Sb3
        • 2.Bxb3#
      • 1...Sc4!
  • Keys
    • 1.Qe7!
      • threat
        • 2.Sf6#
      • 1...Rf3
        • 2.Be4#
      • 1...Bh4
        • 2.Sb6#
      • 1...Se4
        • 2.Ba2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 11
  • Sets
    • R(c);OGATE,P_PINR(D),P_SPINS(a)::B(B)
    • R(c);OGATE,P_SPINS(a)::B(B)
    • R(c);S_CUTB(b)::R(D)
    • S(a);N_GUARD,P_SPINR(c)::B(B)
    • S(e);N_GUARD::QAB1(F),XS(e)
    • S(e);N_GUARD::QAB1(F)
  • Tries
    • Try
      • B(B);CHECK
      • Vars
        • R(c);N_GUARD,P_SPINR(c),P_SPINS(a)::B(B),XR(c)
        • S(a);N_GUARD,P_SPINR(c),P_SPINS(a)::B(B),XS(a)
      • Refutation
        • S(a);P_SPINR(c),P_SPINS(a)
  • Actual
    • Q(F);
    • Threat
      • S(G)
    • Vars
      • R(c);OGATE,P_SPINS(a)::B(B)
      • B(b);N_GUARD::S(G)
      • S(a);N_GUARD,P_SPINR(c)::B(B)
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Developed and maintained by Brian Stephenson.
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