MESON Chess Problem Database

Problem Display
PID: 40535 (8/pK3B2/1nQ2Bp1/5k2/r5r1/3Nnb2/8/5R1q w - - 0 1)

Bottacchi, Antonio

2nd Prize, Brisbane Courier, 1919

8/pK3B2/1nQ2Bp1/5k2/r5r1/3Nnb2/8/5R1q

#2

6 + 9

3360 Simple Two-move Themes 1924

SOLUTION

  • SOUND
  • Sets
    • 1...Sed5
      • 2.Qe6#
    • 1...Sbd5
      • 2.Qe6#
  • Tries
    • 1.Bd8?
      • threat
        • 2.Be6#
      • 1...Rge4
        • 2.Qxg6#
      • 1...Sed5
        • 2.Qe6#
      • 1...Sbd5
        • 2.Qe6#
      • 1...Rae4
        • 2.Qf6#
      • 1...g5
        • 2.Bg6#
      • 1...Qh7!
    • 1.Rxf3+?
      • 1...Raf4
        • 2.Qe6#
      • 1...Rgf4
        • 2.Qe6#
      • 1...Qxf3!
  • Keys
    • 1.Be7!
      • threat
        • 2.Be6#
      • 1...Rge4
        • 2.Qxg6#
      • 1...Sed5
        • 2.Qe6#
      • 1...Sbd5
        • 2.Qe6#
      • 1...Rae4
        • 2.Qf6#
      • 1...g5
        • 2.Bg6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • S(b);N_PINQ(C)::QAB1(C)
    • S(g);N_PINQ(C)::QAB1(C)
  • Tries
    • Try
      • B(D);
      • Threat
        • B(F)
      • Vars
        • R(e);N_PINQ(C),SBLOCK::QAB1(C),XP(h)
        • S(b);N_PINQ(C)::QAB1(C)
        • S(g);N_PINQ(C)::QAB1(C)
        • R(d);N_PINQ(C),SBLOCK::QAR1(C)
        • P(h);S_CUTR(e)::B(F)
      • Refutation
        • Q(a);P_PINB(F)
    • Try
      • R(A);CHECK,N_SPINQ(C),XB(c)
      • Vars
        • R(d);P_SPINR(d)::QAB1(C)
        • R(e);P_SPINR(e)::QAB1(C)
      • Refutation
        • Q(a);P_PINQ(C),XR(A)
  • Actual
    • B(D);
    • Threat
      • B(F)
    • Vars
      • R(e);N_PINQ(C),SBLOCK::QAB1(C),XP(h)
      • S(b);N_PINQ(C)::QAB1(C)
      • S(g);N_PINQ(C)::QAB1(C)
      • R(d);N_PINQ(C),SBLOCK::QAR1(C)
      • P(h);S_CUTR(e)::B(F)
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