MESON Chess Problem Database

Problem Display
PID: 157444 (b1R2b1r/2N4B/3p2N1/B2p3Q/3P1p2/Kn6/p1k1Pn2/R7 w - - 0 1)

Rice, John Michael

6th Prize, Springaren, 2013-2014

b1R2b1r/2N4B/3p2N1/B2p3Q/3P1p2/Kn6/p1k1Pn2/R7

#2

10 + 10

56 The Problemist 2015
56 The Problemist 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Sd1
      • 2.Sxh8#
      • 2.Qf5#
    • 1...Sh1
      • 2.Sxh8#
      • 2.Qf5#
    • 1...Sh3
      • 2.Sxh8#
      • 2.Qf5#
    • 1...Sg4
      • 2.Sxh8#
      • 2.Qf5#
  • Tries
    • 1.Sxh8+?
      • 1...Sd3
        • 2.Bxd3#
      • 1...Se4!
    • 1.Qf5+?
      • 1...Sd3
        • 2.Qxd3#
      • 1...Se4!
  • Keys
    • 1.Qh1!
      • threat
        • 2.Rxa2#
      • 1...Sxh1
        • 2.Sxh8#
      • 1...Sxa1
        • 2.Sxa8#
      • 1...Sxa5
        • 2.Qc1#
      • 1...Sd1
        • 2.Sxh8#
        • 2.Qxd1#
      • 1...Sd3
        • 2.Qd1#
      • 1...Sc1
        • 2.Sxa8#
        • 2.Rxc1#
        • 2.Qxc1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(G);CHECK,XR(j)
      • Vars
        • S(c);N_GUARD,P_SPINS(c)::B(I),XS(c)
      • Refutation
        • S(c);P_SPINS(c)
    • Try
      • Q(F);CHECK
      • Vars
        • S(c);N_GUARD,P_SPINS(c)::QAB1(F),XS(c)
      • Refutation
        • S(c);P_SPINS(c)
  • Actual
    • Q(F);
    • Threat
      • R(A),XP(a)
    • Vars
      • S(c);N_GUARD,XQ(F)::B(I)+S(G),XR(j)
      • S(d);N_GUARD,XR(A)::R(J)+S(H),XB(h)
      • S(d);N_GUARD,XB(E)::QAR1(F)
      • S(c);N_GUARD::QAB1(F)
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Developed and maintained by Brian Stephenson.
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