MESON Chess Problem Database

Problem Display
PID: 153158 (8/1q2p3/1b1pP1KN/2pkp3/B2Pp1Q1/2R5/2N1R3/5b2 w - - 0 1)

Stolev, Nikola

StrateGems, 2011

8/1q2p3/1b1pP1KN/2pkp3/B2Pp1Q1/2R5/2N1R3/5b2

#2

9 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...e3
      • 2.Sxe3#
    • 1...cxd4
      • 2.Sb4#
      • 2.Bb3#
    • 1...exd4
      • 2.Qf5#
      • 2.Qxe4#
  • Tries
    • 1.Rxe4?
      • threat
        • 2.Se3#
      • 1...cxd4
        • 2.Sb4#
      • 1...exd4
        • 2.Qf5#
      • 1...Bb5!
  • Keys
    • 1.Sf5!
      • threat
        • 2.Sfe3#
      • 1...Kxe6
        • 2.Sfe3#
      • 1...cxd4
        • 2.Bb3#
      • 1...exd4
        • 2.Qxe4#
      • 1...e3
        • 2.Sfxe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • P(b);::S(A),XP(b)
  • Tries
    • Try
      • R(B);XP(b)
      • Threat
        • S(A)
      • Vars
        • P(c);N_GUARD,XP(E)::S(A)
        • P(e);OGATEB,XP(E)::QAR2(F)
      • Refutation
        • B(a);
  • Actual
    • S(I);
    • Threat
      • S(I)
    • Vars
      • K(d);S_FLIGHT,XP(G)::QAB(F)+S(I)
      • P(c);N_GUARD,XP(E)::B(D)
      • P(e);XP(E)::QAB1(F),XP(b)
      • P(b);::S(I),XP(b)
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