MESON Chess Problem Database

Problem Display
PID: 194887 (5Q2/2n3N1/7b/8/2PPk2n/5R2/K7/6B1 w - - 0 1)

de Barbieri, Vittorio

L'Italia Scacchistica, 1918

5Q2/2n3N1/7b/8/2PPk2n/5R2/K7/6B1

#2

7 + 4

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Bf4
      • 2.Qxf4#
    • 1...Bxg7
      • 2.Qf4#
    • 1...Sg2
      • 2.Qf5#
    • 1...Sxf3
      • 2.Qf5#
    • 1...Sf5
      • 2.Qxf5#
    • 1...Sg6
      • 2.Qf5#
    • 1...Sb5
      • 2.Qa8#
    • 1...Sa6
      • 2.Qa8#
    • 1...Se6
      • 2.Qa8#
    • 1...Sa8
      • 2.Qxa8#
  • Tries
    • 1.Qa3?
      • threat
        • 2.Qd3#
      • 1...Be3
        • 2.Qxe3#
      • 1...Sxf3!
    • 1.Qe7+?
      • 1...Se6
        • 2.Qb7#
      • 1...Kxf3!
    • 1.Qa8+?
      • 1...Sd5
        • 2.Qxd5#
      • 1...Sxa8!
  • Keys
    • 1.Se6!
      • threat
        • 2.Sc5#
      • 1...Bxf8
        • 2.Sg5#
      • 1...Sxe6
        • 2.Qa8#
      • 1...Be3
        • 2.Rxe3#
      • 1...Bf4
        • 2.Qxf4#
      • 1...Sf5
        • 2.Qxf5#
      • 1...Sa6
        • 2.Qa8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 6
  • Sets
    • B(c);N_GUARD::QAR1(G),XB(c)
    • B(c);N_GUARD,XS(F)::QAR1(G)
    • S(b);N_GUARD::QAB1(G)
    • S(b);N_GUARD,XR(C)::QAB1(G)
    • S(b);N_GUARD::QAB1(G),XS(b)
    • S(d);N_GUARD::QAB(G)
    • S(d);N_GUARD::QAB(G),XS(d)
  • Tries
    • Try
      • Q(G);
      • Threat
        • QAB1(G)
      • Vars
        • B(c);N_GUARD::QAR1(G),XB(c)
      • Refutation
        • S(b);XR(C)
    • Try
      • Q(G);CHECK
      • Vars
        • S(d);OGATE,P_SPINS(d)::QAB(G)
      • Refutation
        • K(a);S_FLIGHT,XR(C)
    • Try
      • Q(G);CHECK
      • Vars
        • S(d);N_GUARD,P_SPINS(d)::QAB1(G),XS(d)
      • Refutation
        • S(d);XQ(G)
  • Actual
    • S(F);
    • Threat
      • S(F)
    • Vars
      • B(c);N_GUARD,XQ(G)::S(F)
      • S(d);N_GUARD,XS(F)::QAB(G)
      • B(c);N_GUARD::R1(C),XB(c)
      • B(c);N_GUARD::QAR1(G),XB(c)
      • S(b);N_GUARD::QAB1(G),XS(b)
      • S(d);N_GUARD::QAB(G)
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