MESON Chess Problem Database

Problem Display
PID: 234152 (k2n4/1b4R1/1KN4Q/8/8/8/8/8 w - - 0 1)

Abdullayev, Suleyman

Sem Shakhmatnikh not, 2018

k2n4/1b4R1/1KN4Q/8/8/8/8/8

#2

4 + 3

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Ba6
      • 2.Ra7#
    • 1...Bc8
      • 2.Ra7#
  • Tries
    • 1.Qf4?
      • threat
        • 2.Qb8#
      • 1...Bxc6
        • 2.Ra7#
      • 1...Sxc6!
    • 1.Qh2?
      • threat
        • 2.Qb8#
      • 1...Bxc6
        • 2.Ra7#
      • 1...Sxc6!
    • 1.Qd6?
      • threat
        • 2.Qb8#
      • 1...Bxc6
        • 2.Ra7#
        • 2.Qxd8#
      • 1...Sxc6!
  • Keys
    • 1.Qh8!
      • 1...Bxc6
        • 2.Qxd8#
      • 1...Ba6
        • 2.Ra7#
      • 1...Bc8
        • 2.Ra7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • B(a);OGATE::R1(D)
  • Tries
    • Try
      • Q(C);
      • Threat
        • QAR1(C)
      • Vars
        • B(a);OGATE,XS(B)::R1(D)
      • Refutation
        • S(c);XS(B)
    • Try
      • Q(C);
      • Threat
        • QAR1(C)
      • Vars
        • B(a);OGATE,XS(B)::R1(D)
      • Refutation
        • S(c);XS(B)
    • Try
      • Q(C);
      • Threat
        • QAR1(C)
      • Refutation
        • S(c);XS(B)
  • Actual
    • Q(C);P_PINS(c)
    • Vars
      • B(a);N_GUARD,XS(B)::QAR(C),XS(c)
      • B(a);OGATE::R1(D)
      • B(a);N_SPINS(c),OGATE::R1(D)
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