MESON Chess Problem Database

Problem Display
PID: 239791 (6n1/2R5/8/3N1p1p/3kP2Q/n2N2P1/4qP1K/3R1bB1 w - - 0 1)

Cristoffanini, Guido

L'Italia Scacchistica, 1929

6n1/2R5/8/3N1p1p/3kP2Q/n2N2P1/4qP1K/3R1bB1

#2

10 + 7

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qg4
      • 2.f3#
    • 1...Qxf2+
      • 2.Bxf2#
    • 1...Qe3
      • 2.fxe3#
  • Keys
    • 1.Sc3!
      • threat
        • 2.Qd8#
      • 1...Qxf2+
        • 2.Bxf2#
      • 1...Qxd3
        • 2.f4#
      • 1...Qxe4
        • 2.f3#
      • 1...Sc4
        • 2.Sb5#
      • 1...Qa2
        • 2.exf5#
      • 1...Sb5
        • 2.Sxb5#
      • 1...Sf6
        • 2.Qxf6#
      • 1...Se7
        • 2.Qf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 2
  • Sets
    • Q(b);N_PINP(C)::B(B)+P(C)
    • Q(b);CHECK,OGATE,P_SPINQ(b),XP(C)::B(B),XQ(b)
    • Q(b);N_PINP(C)::P(C),XQ(b)
  • Actual
    • S(I);
    • Threat
      • QAR(H)
    • Vars
      • Q(b);CHECK,OGATE,P_SPINQ(b),XP(C)::B(B),XQ(b)
      • Q(b);N_PINP(C),P_SPINQ(b),XS(E)::B(B)+P(C)
      • Q(b);N_PINP(C),P_SPINQ(b),XP(G)::B(B)+P(C)
      • S(c);N_GUARD::S(I)
      • Q(b);N_GUARD::QAR(H)+P(G),XP(e)
      • S(c);N_GUARD::S(I),XS(c)
      • S(g);N_GUARD::QAB(H),XS(g)
      • S(g);N_GUARD::QAB(H)
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