MESON Chess Problem Database

Problem Display
PID: 259320 (5q2/7b/3pRn2/2B3rp/3N1kpK/4p3/4P3/QB6 w - - 0 1)

Pirrone, Santi

L'Italia Scacchistica, 1971

5q2/7b/3pRn2/2B3rp/3N1kpK/4p3/4P3/QB6

#2

7 + 9

15601 Albrecht-Leiss-Degener Collection 2022

SOLUTION

  • SOUND
  • Tries
    • 1.Sf5?
      • threat
        • 2.Bxe3#
      • 1...dxc5
        • 2.Qe5#
      • 1...Sd5
        • 2.Qd4#
      • 1...Se4!
    • 1.Bg6?
      • threat
        • 2.Qf1#
      • 1...Se4
        • 2.Rxe4#
      • 1...Qa8!
    • 1.Bxh7?
      • threat
        • 2.Qf1#
      • 1...Se4
        • 2.Rxe4#
      • 1...Qa8!
    • 1.Bxd6+?
      • 1...Re5
        • 2.Bxe5#
      • 1...Qxd6!
  • Keys
    • 1.Bf5!
      • threat
        • 2.Qf1#
      • 1...Qa8
        • 2.Bxd6#
      • 1...Se4
        • 2.Rxe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);
      • Threat
        • B(F),XP(a)
      • Vars
        • P(f);N_GUARD,XB(F)::QAB1(A)
        • S(g);N_GUARD::QAR2(A)
      • Refutation
        • S(g);
    • Try
      • B(B);
      • Threat
        • QAR(A)
      • Vars
        • S(g);N_GUARD::R1(G),XS(g)
      • Refutation
        • Q(i);
    • Try
      • B(B);XB(h)
      • Threat
        • QAR(A)
      • Vars
        • S(g);N_GUARD::R1(G),XS(g)
      • Refutation
        • Q(i);
    • Try
      • B(F);CHECK,XP(f)
      • Vars
        • R(d);N_GUARD,P_SPINR(d)::B(F),XR(d)
      • Refutation
        • Q(i);XB(F)
  • Actual
    • B(B);
    • Threat
      • QAR(A)
    • Vars
      • Q(i);N_GUARD::B(F),XP(f)
      • S(g);N_GUARD::R1(G),XS(g)
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