MESON Chess Problem Database

Problem Display
PID: 150223 (8/8/1N1ppPK1/Bp1Pk3/2prn2p/2pp2PN/1Q5n/4R3 w - - 0 1)

Guida, Marco

Die Schwalbe, 2013

8/8/1N1ppPK1/Bp1Pk3/2prn2p/2pp2PN/1Q5n/4R3

#2

9 + 11

SOLUTION

  • SOUND
  • Tries
    • 1.Sg5?
      • threat
        • 2.Sf7#
      • 1...Rxd5
        • 2.Rxe4#
      • 1...exd5
        • 2.Sd7#
      • 1...hxg3!
    • 1.Qf2?
      • threat
        • 2.Qf4#
      • 1...Rxd5
        • 2.Sd7#
      • 1...exd5
        • 2.Qf5#
      • 1...Sf3!
  • Keys
    • 1.Qxb5!
      • threat
        • 2.Sd7#
      • 1...Rxd5
        • 2.Bxc3#
      • 1...exd5
        • 2.Qe8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);
      • Threat
        • S(D)
      • Vars
        • R(e);N_GUARD,P_SPINP(b),XP(F)::R1(A),XS(f)
        • P(k);SBLOCK,XP(F)::S(G)
      • Refutation
        • P(g);XP(C)
    • Try
      • Q(B);
      • Threat
        • QAB1(B)
      • Vars
        • R(e);SBLOCK,XP(F)::S(G)
        • P(k);N_GUARD,XP(F)::QAR1(B)
      • Refutation
        • S(a);
  • Actual
    • Q(B);XP(h)
    • Threat
      • S(G)
    • Vars
      • R(e);OGATEB,P_SPINR(e),XP(F)::B(E),XP(b)
      • P(k);OGATEB,P_SPINP(k),XP(F)::QAR(B)
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