MESON Chess Problem Database

Problem Display
PID: 48948 (8/1p6/1K6/3Q1p2/kp3P2/r1p5/2r5/n2B4 w - - 0 1)

Shinkman, William Anthony

American Chess Magazine, 1897

8/1p6/1K6/3Q1p2/kp3P2/r1p5/2r5/n2B4

#2

4 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Ra2
      • 2.Qxa2#
    • 1...Rb3
      • 2.Qa5#
    • 1...Sb3
      • 2.Qb5#
      • 2.Qd7#
    • 1...b3
      • 2.Qc4#
      • 2.Qd4#
      • 2.Qa5#
      • 2.Qb5#
  • Tries
    • 1.Bxc2+?
      • 1...Rb3
        • 2.Qa5#
      • 1...Sb3
        • 2.Qa5#
        • 2.Qb5#
        • 2.Qd7#
      • 1...b3
        • 2.Qc4#
        • 2.Qd4#
        • 2.Qa5#
        • 2.Qb5#
      • 1...Sxc2!
    • 1.Qc4?
      • 1...Ra2
        • 2.Qxa2#
      • 1...Sb3
        • 2.Qb5#
      • 1...Rb3!
    • 1.Qe6?
      • 1...Ra2
        • 2.Qxa2#
      • 1...b3
        • 2.Qc4#
      • 1...Sb3
        • 2.Qd7#
        • 2.Qe8#
      • 1...Rb3!
    • 1.Qf7?
      • 1...Ra2
        • 2.Qxa2#
      • 1...b3
        • 2.Qc4#
      • 1...Sb3
        • 2.Qe8#
        • 2.Qd7#
      • 1...Rb3!
  • Keys
    • 1.Qg8!
      • 1...Ra2
        • 2.Qxa2#
      • 1...Rb3
        • 2.Qa8#
      • 1...b3
        • 2.Qc4#
      • 1...Sb3
        • 2.Qe8#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • R(c);OGATEB::QAR2(C),XR(c)
    • R(c);N_SPINR(b),SBLOCK::QAR1(C)
  • Tries
    • Try
      • B(A);CHECK,XR(b)
      • Vars
        • R(c);P_SPINR(c)::QAR1(C)
      • Refutation
        • S(a);XB(A)
    • Try
      • Q(C);P_PINP(f)
      • Vars
        • R(c);OGATEB::QAR2(C),XR(c)
        • S(a);N_SPINR(b),SBLOCK::QAB1(C)
      • Refutation
        • R(c);N_SPINR(b)
    • Try
      • Q(C);
      • Vars
        • R(c);OGATEB::QAR2(C),XR(c)
        • P(f);N_SPINR(b),OGATEB::QAR2(C)
      • Refutation
        • R(c);N_SPINR(b)
    • Try
      • Q(C);
      • Vars
        • R(c);OGATEB::QAR2(C),XR(c)
        • P(f);N_SPINR(b),OGATEB::QAR2(C)
      • Refutation
        • R(c);N_SPINR(b)
  • Actual
    • Q(C);
    • Vars
      • R(c);OGATEB::QAR2(C),XR(c)
      • R(c);N_SPINR(b),SBLOCK::QAR(C)
      • P(f);N_SPINR(b),OGATEB::QAR2(C)
      • S(a);N_SPINR(b),SBLOCK::QAB(C)
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