MESON Chess Problem Database

Problem Display
PID: 146337 (2b5/5P2/4R2p/RB1N3k/p3p1n1/r4rpK/5pPn/2B2N2 w - - 0 1)

Hirschenson, Aaron

1st HM., The Problemist, 2012

2b5/5P2/4R2p/RB1N3k/p3p1n1/r4rpK/5pPn/2B2N2

#2

9 + 11

56 The Problemist 2014

SOLUTION

  • SOUND
  • Tries
    • 1.Bd3?
      • threat
        • 2.Sf4#
      • 1...Rf4
        • 2.Sxf4#
      • 1...Rf5
        • 2.Sxg3#
      • 1...Se5!
    • 1.Bd7?
      • threat
        • 2.Sf4#
      • 1...Rf4
        • 2.Sxf4#
      • 1...Se5
        • 2.Rxh6#
      • 1...Rf5!
  • Keys
    • 1.Be2!
      • threat
        • 2.Sf4#
      • 1...Rf4
        • 2.Sxf4#
      • 1...Rf5
        • 2.Rxh6#
      • 1...Se5
        • 2.Sxg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(F);
      • Threat
        • R(E)+S(G),DCHECK
      • Vars
        • R(d);::R(E)+S(G),DCHECK,XR(d)
        • R(d);N_GUARD::S(B),XP(e)
      • Refutation
        • S(h);P_PINR(H)
    • Try
      • B(F);
      • Threat
        • R(E)+S(G),DCHECK
      • Vars
        • R(d);::R(E)+S(G),DCHECK,XR(d)
        • S(h);N_GUARD::R1(H),XP(j)
      • Refutation
        • R(d);
  • Actual
    • B(F);
    • Threat
      • R(E)+S(G),DCHECK
    • Vars
      • R(d);P_SPINS(h)::R(E)+S(G),DCHECK,XR(d)
      • R(d);P_SPINS(h)::R1(H),XP(j)
      • S(h);P_PINR(H),P_SPINR(d)::S(B),XP(e)
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