MESON Chess Problem Database

Problem Display
PID: 278244 (3N4/1B6/R2P2b1/1p3pQ1/1B1k4/5p1K/2PN2n1/8 w - - 0 1)

Caponetti, Raffaele A

To Mat, 1958

3N4/1B6/R2P2b1/1p3pQ1/1B1k4/5p1K/2PN2n1/8

#2

9 + 6

15601 Albrecht-Leiss-Degener Collection 2024

SOLUTION

  • SOUND
  • Sets
    • 1...Ke5
      • 2.Sxf3#
      • 2.Bc3#
    • 1...Se1
      • 2.Qf4#
    • 1...Se3
      • 2.Qf4#
      • 2.Qf6#
    • 1...Sf4+
      • 2.Qxf4#
    • 1...Sh4
      • 2.Qf4#
    • 1...f4
      • 2.Qc5#
  • Tries
    • 1.Sb3+?
      • 1...Ke5
        • 2.Bc3#
      • 1...Kc4!
    • 1.Bc3+?
      • 1...Kc5
        • 2.Se6#
      • 1...Kxc3!
    • 1.Bxf3?
      • threat
        • 2.Sc6#
      • 1...Sf4+
        • 2.Qxf4#
      • 1...Ke5
        • 2.Bc3#
      • 1...f4
        • 2.Qc5#
      • 1...Be8!
    • 1.c3+?
      • 1...Ke5
        • 2.Sxf3#
      • 1...Kd3!
  • Keys
    • 1.Ra3!
      • threat
        • 2.Qf6#
      • 1...Sf4+
        • 2.Qxf4#
      • 1...Ke5
        • 2.Sxf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 3
  • Sets
    • S(a);N_GUARD::QAR2(E)
    • S(a);CHECK,N_GUARD::QAR2(E),XS(a)
    • P(e);OGATE::QAB1(E)
  • Tries
    • Try
      • S(B);CHECK
      • Vars
        • K(c);N_GUARD,P_SPINP(e),S_FLIGHT::B(D)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • B(D);CHECK
      • Vars
        • K(c);N_GUARD,P_SPINP(e),S_FLIGHT::S(I)
      • Refutation
        • K(c);S_FLIGHT,XB(D)
    • Try
      • B(H);XP(b)
      • Threat
        • S(I)
      • Vars
        • S(a);CHECK,N_GUARD::QAR2(E),XS(a)
        • K(c);N_GUARD,P_SPINP(e),S_FLIGHT::B(D)
        • P(e);OGATE::QAB1(E)
      • Refutation
        • B(f);
    • Try
      • P(A);CHECK
      • Vars
        • K(c);N_GUARD,P_SPINP(e),S_FLIGHT::S(B),XP(b)
      • Refutation
        • K(c);P-FLIGHT
  • Actual
    • R(F);
    • Threat
      • QAB(E)
    • Vars
      • S(a);CHECK,N_GUARD::QAR2(E),XS(a)
      • K(c);N_GUARD,P_SPINP(e),S_FLIGHT::S(B),XP(b)
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