MESON Chess Problem Database

Problem Display
PID: 146336 (5B2/pK3p2/B1P2p1R/2Pk2b1/2NN1nR1/5P2/2P3n1/Q7 w - - 0 1)

Handloser, Ralf Chris

4th HM., The Problemist, 2012

5B2/pK3p2/B1P2p1R/2Pk2b1/2NN1nR1/5P2/2P3n1/Q7

#2

12 + 7

56 The Problemist 2014

SOLUTION

  • SOUND
  • Tries
    • 1.Se3+?
      • 1...Ke5
        • 2.Bd6#
      • 1...Sxe3!
    • 1.Sb6+?
      • 1...Ke5
        • 2.Bd6#
      • 1...axb6!
    • 1.Rxg5+?
      • 1...f5
        • 2.Rxf5#
      • 1...fxg5!
    • 1.Qa5?
      • threat
        • 2.Qd8#
      • 1...Kxd4
        • 2.Qd2#
      • 1...f5
        • 2.Rd6#
      • 1...Se6!
  • Keys
    • 1.Sb5!
      • threat
        • 2.Sc7#
      • 1...Kxc4
        • 2.Qd4#
      • 1...Ke6
        • 2.Qe5#
      • 1...Se6
        • 2.Sc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);CHECK
      • Vars
        • K(c);P-FLIGHT::B(L)
      • Refutation
        • S(a);XS(D)
    • Try
      • S(D);CHECK
      • Vars
        • K(c);P-FLIGHT::B(L)
      • Refutation
        • P(f);XS(D)
    • Try
      • R(F);CHECK,XB(d)
      • Vars
        • P(e);P_SPINP(e)::R(F),XP(e)
      • Refutation
        • P(e);XR(F)
    • Try
      • Q(A);
      • Threat
        • QAR(A)
      • Vars
        • K(c);OGATEB,P-FLIGHT,P_SPINS(b),XS(E)::QAR2(A)
        • P(e);OGATE::R1(J)
      • Refutation
        • S(b);
  • Actual
    • S(E);
    • Threat
      • S(E)
    • Vars
      • K(c);P_SPINS(b),S_FLIGHT,XS(D)::QAR1(A)
      • K(c);P_SPINP(e),S_FLIGHT::QAR1(A)
      • S(b);SBLOCK::S(E)
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