MESON Chess Problem Database

Problem Display
PID: 246068 (8/8/8/3Q4/6b1/R6p/5K1k/6N1 w - - 0 1)

Zinoviev, Nikolai

Sa ogneupory, 1988

8/8/8/3Q4/6b1/R6p/5K1k/6N1

#2

4 + 3

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Bd1
      • 2.Rxh3#
    • 1...Be2
      • 2.Rxh3#
    • 1...Bh5
      • 2.Rxh3#
  • Tries
    • 1.Sf3+?
      • 1...Kh1
        • 2.Ra1#
        • 2.Qd1#
      • 1...Bxf3!
  • Keys
    • 1.Qd1!
      • 1...Kh1
        • 2.Sf3#
      • 1...Bxd1
        • 2.Rxh3#
      • 1...Bf5
        • 2.Sf3#
      • 1...Be2
        • 2.Rxh3#
      • 1...Bf3
        • 2.Sxf3#
      • 1...Bh5
        • 2.Rxh3#
      • 1...Be6
        • 2.Sf3#
      • 1...Bd7
        • 2.Sf3#
      • 1...Bc8
        • 2.Sf3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • B(c);N_GUARD::R1(C),XP(b)
  • Tries
    • Try
      • S(A);CHECK
      • Refutation
        • B(c);XS(A)
  • Actual
    • Q(D);
    • Vars
      • K(a);P-FLIGHT::QAR(D)+S(A)
      • B(c);N_GUARD,XQ(D)::R1(C),XP(b)
      • B(c);N_GUARD::S(A)
      • B(c);N_GUARD::R1(C),XP(b)
      • B(c);N_GUARD::S(A),XB(c)
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