MESON Chess Problem Database

Problem Display
PID: 21304 (5KB1/3p4/1R1n1Qp1/Ppk5/6Rn/6p1/3P1rr1/6Bb w - - 0 1)

Bottacchi, Antonio

Good Companions (October), 1918

5KB1/3p4/1R1n1Qp1/Ppk5/6Rn/6p1/3P1rr1/6Bb

#2

8 + 10

3132 The Good Companion Two-Mover 1922

SOLUTION

  • SOUND
  • Sets
    • 1...Sf3
      • 2.Qxd6#
    • 1...Shf5
      • 2.Qe5#
    • 1...Sdf5
      • 2.Qc3#
    • 1...Sf7
      • 2.Qd4#
    • 1...b4
      • 2.d4#
  • Tries
    • 1.Bxf2+?
      • 1...gxf2
        • 2.Qd4#
        • 2.Qe5#
        • 2.Qxd6#
      • 1...Rxf2!
    • 1.Rg5+?
      • 1...Shf5
        • 2.Qxd6#
      • 1...Sdf5
        • 2.Qc3#
        • 2.Qd6#
      • 1...Kb4!
  • Keys
    • 1.Ra4!
      • threat
        • 2.d4#
      • 1...Sf7
        • 2.Qd4#
      • 1...Sf3
        • 2.Qxd6#
      • 1...Shf5
        • 2.Qe5#
      • 1...Sdf5
        • 2.Qc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 1
  • Sets
    • S(e);N_PINQ(F)::QAB1(F),XS(h)
    • S(e);N_PINQ(F)::QAR2(F)
    • S(h);N_PINQ(F)::QAR2(F)
    • S(h);N_PINQ(F)::QAB1(F)
    • P(f);::P(B)
  • Tries
    • Try
      • B(A);CHECK,N_SPINQ(F),XR(b)
      • Refutation
        • R(c);P_PINQ(F),XB(A)
    • Try
      • R(C);CHECK
      • Vars
        • S(e);N_PINQ(F),P_SPINS(e)::QAB1(F),XS(h)
      • Refutation
        • K(g);N_SPINR(b),P_SPINP(f),S_FLIGHT
  • Actual
    • R(C);
    • Threat
      • P(B)
    • Vars
      • S(h);N_PINQ(F)::QAB1(F)
      • S(e);N_PINQ(F)::QAB1(F),XS(h)
      • S(e);N_PINQ(F)::QAR2(F)
      • S(h);N_PINQ(F)::QAR2(F)
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