MESON Chess Problem Database

Problem Display
PID: 263422 (1nQ5/3p3n/3B4/p1NkPB2/2p4R/2pr4/p2r4/Kb4b1 w - - 0 1)

Brogi, Giuseppe

L'Italia Scacchistica, 1959

1nQ5/3p3n/3B4/p1NkPB2/2p4R/2pr4/p2r4/Kb4b1

#2

7 + 12

15601 Albrecht-Leiss-Degener Collection 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Bd4
      • 2.Be4#
    • 1...Bxc5
      • 2.Qxc5#
    • 1...Sa6
      • 2.Qb7#
      • 2.Qa8#
    • 1...Sc6
      • 2.Qg8#
  • Tries
    • 1.Sb3?
      • threat
        • 2.Qxc4#
      • 1...cxb3
        • 2.Qc4#
      • 1...Rd4
        • 2.Qc5#
      • 1...Bc5
        • 2.Qxc5#
      • 1...Sc6
        • 2.Qg8#
      • 1...Bd4!
    • 1.Sxd3?
      • threat
        • 2.Qxc4#
      • 1...cxd3
        • 2.Qc4#
      • 1...Bd4
        • 2.Sf4#
      • 1...Bc5
        • 2.Qxc5#
      • 1...Sc6
        • 2.Qg8#
      • 1...Bxd3!
    • 1.Sa4?
      • threat
        • 2.Qxc4#
      • 1...Rd4
        • 2.Sxc3#
        • 2.Sb6#
        • 2.Qc5#
      • 1...Bc5
        • 2.Qxc5#
      • 1...Sc6
        • 2.Qg8#
      • 1...Bd4!
    • 1.Sa6?
      • threat
        • 2.Qxc4#
      • 1...Rd4
        • 2.Qc5#
      • 1...Bc5
        • 2.Qxc5#
      • 1...Sc6
        • 2.Sc7#
        • 2.Qg8#
      • 1...Bd4!
    • 1.Sb7?
      • threat
        • 2.Qxc4#
      • 1...Rd4
        • 2.Qc5#
      • 1...Bc5
        • 2.Qxc5#
      • 1...Sc6
        • 2.Qg8#
      • 1...Bd4!
    • 1.Sxd7?
      • threat
        • 2.Qxc4#
      • 1...Rd4
        • 2.Sb6#
        • 2.Qc5#
      • 1...Bc5
        • 2.Qxc5#
      • 1...Sc6
        • 2.Qg8#
      • 1...Bd4!
    • 1.Qxb8?
      • threat
        • 2.Qb7#
        • 2.Qa8#
      • 1...Kc6
        • 2.Qb7#
      • 1...Rb2!
  • Keys
    • 1.Se6!
      • threat
        • 2.Qxc4#
      • 1...Bd4
        • 2.Sf4#
      • 1...Rd4
        • 2.Qc5#
      • 1...Bc5
        • 2.Qxc5#
      • 1...Sc6
        • 2.Sc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • B(b);SBLOCK::B(E)
    • B(b);OGATE,XS(C)::QAR1(G),XB(b)
    • S(l);SBLOCK::QAB(G)
  • Tries
    • Try
      • S(C);
      • Threat
        • QAB1(G),XP(g)
      • Vars
        • P(g);XS(C)::QAB1(G)
        • R(f);S_CUTB(b)::QAR1(G)
        • B(b);N_GUARD::QAR1(G),XB(b)
        • S(l);SBLOCK::QAB(G)
      • Refutation
        • B(b);
    • Try
      • S(C);XR(f)
      • Threat
        • QAB1(G),XP(g)
      • Vars
        • P(g);XS(C)::QAB1(G)
        • B(b);SBLOCK::S(C)
        • B(b);N_GUARD::QAR1(G),XB(b)
        • S(l);SBLOCK::QAB(G)
      • Refutation
        • B(a);XS(C)
    • Try
      • S(C);
      • Threat
        • QAB1(G),XP(g)
      • Vars
        • B(b);N_GUARD::QAR1(G),XB(b)
        • S(l);SBLOCK::QAB(G)
      • Refutation
        • B(b);
    • Try
      • S(C);
      • Threat
        • QAB1(G),XP(g)
      • Vars
        • R(f);S_CUTB(b)::QAR1(G)
        • B(b);N_GUARD::QAR1(G),XB(b)
      • Refutation
        • B(b);
    • Try
      • S(C);
      • Threat
        • QAB1(G),XP(g)
      • Vars
        • R(f);S_CUTB(b)::QAR1(G)
        • B(b);N_GUARD::QAR1(G),XB(b)
        • S(l);SBLOCK::QAB(G)
      • Refutation
        • B(b);
    • Try
      • S(C);XP(j)
      • Threat
        • QAB1(G),XP(g)
      • Vars
        • B(b);N_GUARD::QAR1(G),XB(b)
        • S(l);SBLOCK::QAB(G)
      • Refutation
        • B(b);
    • Try
      • Q(G);XS(l)
      • Threat
        • DUALS(2)
      • Vars
        • K(i);S_FLIGHT::QAB1(G)
      • Refutation
        • R(d);
  • Actual
    • S(C);
    • Threat
      • QAB1(G),XP(g)
    • Vars
      • B(b);SBLOCK::S(C)
      • R(f);S_CUTB(b)::QAR1(G)
      • B(b);N_GUARD::QAR1(G),XB(b)
      • S(l);SBLOCK::S(C)
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