MESON Chess Problem Database

Problem Display
PID: 194041 (1Q5K/B7/2pp1p2/p7/2kpBrNR/R3p3/b7/4n1r1 w - - 0 1)

Guidelli, Giorgio

1st HM., L'Italia Scacchistica, 1917

1Q5K/B7/2pp1p2/p7/2kpBrNR/R3p3/b7/4n1r1

#2

7 + 11

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Bb1
      • 2.Qb3#
    • 1...Bb3
      • 2.Qxb3#
    • 1...d3
      • 2.Sxe3#
  • Tries
    • 1.Bb1?
      • threat
        • 2.Bxa2#
      • 1...Kd5
        • 2.Qg8#
      • 1...Bxb1
        • 2.Qb3#
      • 1...Bb3
        • 2.Qxb3#
      • 1...Rf2
        • 2.Sxe3#
      • 1...Rg2!
    • 1.Bd3+?
      • 1...Kd5
        • 2.Qg8#
      • 1...Sxd3!
    • 1.Rc3+?
      • 1...dxc3
        • 2.Sxe3#
      • 1...Kxc3!
  • Keys
    • 1.Bxc6!
      • threat
        • 2.Qb5#
      • 1...Bb3
        • 2.Qxb3#
      • 1...Rf5
        • 2.Sxe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • B(c);N_GUARD::QAB1(F)
    • B(c);N_GUARD::QAB1(F),XB(c)
    • P(f);N_GUARD::S(C),XP(d)
  • Tries
    • Try
      • B(B);
      • Threat
        • B(B),XB(c)
      • Vars
        • K(e);S_FLIGHT::QAB(F)
        • B(c);N_GUARD,XB(B)::QAB1(F)
        • B(c);N_GUARD::QAB1(F),XB(c)
        • R(g);S_CUTP(f)::S(C),XP(d)
      • Refutation
        • R(b);
    • Try
      • B(B);CHECK
      • Vars
        • K(e);S_FLIGHT::QAB(F)
      • Refutation
        • S(a);XB(B)
    • Try
      • R(A);CHECK
      • Vars
        • P(f);SBLOCK,XR(A)::S(C),XP(d)
      • Refutation
        • K(e);P-FLIGHT,XR(A)
  • Actual
    • B(B);XP(i)
    • Threat
      • QAB1(F)
    • Vars
      • B(c);N_GUARD::QAB1(F),XB(c)
      • R(g);S_CUTP(f)::S(C),XP(d)
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