MESON Chess Problem Database

Problem Display
PID: 30722 (8/3p2K1/3rp3/4kp2/3r4/1Q6/3N2N1/B7 w - - 0 1)

Abbott, Joseph William

The Westminster Papers, 1874

8/3p2K1/3rp3/4kp2/3r4/1Q6/3N2N1/B7

#2

5 + 6

SOLUTION

  • SOUND
  • Tries
    • 1.Qf3?
      • threat
        • 2.Sc4#
      • 1...f4
        • 2.Qe4#
        • 2.Qh5#
      • 1...Rc6!
    • 1.Qg3+?
      • 1...f4
        • 2.Qg5#
      • 1...Kd5!
    • 1.Qb8?
      • 1...Kd5
        • 2.Qb5#
      • 1...f4!
  • Keys
    • 1.Qd3!
      • 1...Kd5
        • 2.Qb5#
      • 1...Ra6
        • 2.Qxd4#
      • 1...Rb6
        • 2.Qxd4#
      • 1...Rc6
        • 2.Qxd4#
      • 1...Rd5
        • 2.Sc4#
      • 1...f4
        • 2.Qe4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(D);
      • Threat
        • S(B)
      • Refutation
        • R(d);
    • Try
      • Q(D);CHECK
      • Vars
        • P(c);OGATEB,P_SPINP(c)::QAR2(D)
      • Refutation
        • K(b);N_SPINR(a),P-FLIGHT
    • Try
      • Q(D);
      • Vars
        • K(b);N_SPINR(a),P-FLIGHT::QAR2(D)
      • Refutation
        • P(c);
  • Actual
    • Q(D);
    • Vars
      • K(b);P-FLIGHT::QAR2(D)
      • R(d);N_GUARD::QAB1(D),XR(a)
      • R(d);SBLOCK::S(B)
      • P(c);N_GUARD::QAR1(D)
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