MESON Chess Problem Database

Problem Display
PID: 193506 (1n4QB/5r2/3p3n/RP1k1P2/1Pp1p3/8/8/3B3K w - - 0 1)

Guidelli, Giorgio

L'Illustrazione Italiana, 1915

1n4QB/5r2/3p3n/RP1k1P2/1Pp1p3/8/8/3B3K

#2

8 + 7

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Sg4
      • 2.Qxf7#
    • 1...Sxf5
      • 2.Qxf7#
    • 1...Sd7
      • 2.Qa8#
    • 1...c3
      • 2.Bb3#
    • 1...e3
      • 2.Bf3#
      • 2.Qg2#
  • Tries
    • 1.Ra2?
      • threat
        • 2.Rd2#
      • 1...Sxf5
        • 2.Qxf7#
      • 1...c3
        • 2.Bb3#
      • 1...e3
        • 2.Bf3#
        • 2.Qg2#
      • 1...Sc6!
  • Keys
    • 1.Ba4!
      • threat
        • 2.b6#
      • 1...Sxf5
        • 2.Qxf7#
      • 1...c3
        • 2.Bb3#
      • 1...e3
        • 2.Qg2#
      • 1...Sa6
        • 2.bxa6#
      • 1...Sc6
        • 2.bxc6#
      • 1...Sd7
        • 2.Qa8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • S(e);N_GUARD::QAB(G),XR(f)
    • S(e);N_GUARD,XP(F)::QAB(G),XR(f)
    • S(g);OGATE::QAB(G)
    • P(a);OGATEB::B(A)
  • Tries
    • Try
      • R(D);
      • Threat
        • R(D)
      • Vars
        • S(e);N_GUARD,XP(F)::QAB(G),XR(f)
        • P(a);OGATEB::B(A)
      • Refutation
        • S(g);
  • Actual
    • B(A);
    • Threat
      • R(D)+P(E)
    • Vars
      • S(e);N_GUARD,XP(F)::QAB(G),XR(f)
      • P(a);OGATEB::B(A)
      • P(b);OGATEB::QAB(G)
      • S(g);OGATE::R(D)+P(E),XS(g)
      • S(g);OGATE::QAB(G)
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