MESON Chess Problem Database

Problem Display
PID: 175864 (1RK2kB1/1pppp1N1/r1q3pN/1pQ5/4P3/3p4/1B6/8 w - - 0 1)

Rice, John Michael

The Problemist Supplement, 2017

1RK2kB1/1pppp1N1/r1q3pN/1pQ5/4P3/3p4/1B6/8

#2

8 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Qxe4
      • 2.Kxc7#
      • 2.Kxd7#
    • 1...Qd5
      • 2.Kxc7#
    • 1...Qxc5
      • 2.Kxb7#
      • 2.Kxd7#
    • 1...Qb6
      • 2.Kxd7#
    • 1...Qd6
      • 2.Kxb7#
    • 1...Qe6
      • 2.Kxb7#
      • 2.Kxc7#
    • 1...d6
      • 2.Qf2#
  • Tries
    • 1.Se6+?
      • 1...Ke8
        • 2.Bf7#
      • 1...Qxe6
        • 2.Kxb7#
        • 2.Kxc7#
      • 1...dxe6!
  • Keys
    • 1.Be6!
      • threat
        • 2.Qf2#
      • 1...Qxe4
        • 2.Kxc7#
        • 2.Kxd7#
      • 1...Qxc5
        • 2.Kxb7#
        • 2.Kxd7#
      • 1...Qxe6
        • 2.Kxb7#
        • 2.Kxc7#
      • 1...Qd5
        • 2.Kxc7#
      • 1...Qb6
        • 2.Kxd7#
      • 1...Qd6
        • 2.Kxb7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 1
  • Sets
    • Q(d);::R(F)+K(G),XP(g)
    • Q(d);::R(F)+K(G),XP(h)
    • Q(d);N_SPINP(i)::R(F)+K(G),XP(f)
    • P(h);N_SPINP(i),S_CUTQ(d)::QAR(C)
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • K(j);N_SPINP(i),P-FLIGHT::B(H)
      • Refutation
        • P(h);XS(E)
  • Actual
    • B(H);
    • Threat
      • QAR(C)
    • Vars
      • Q(d);::R(F)+K(G),XP(g)
      • Q(d);::R(F)+K(G),XP(h)
      • Q(d);N_SPINP(i)::R(F)+K(G),XP(f)
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