MESON Chess Problem Database

Problem Display
PID: 146792 (8/6p1/3P2Pb/R4Bk1/6p1/1p4N1/pr2P1N1/3Q3K w - - 0 1)

Gavriliv, Evgeni M

Soroka, Ivan Ivanovich

Zalokotsky, Roman Fedorovich (aka Fedorovich, Roman)

Canadian Chess Chat, 1983

8/6p1/3P2Pb/R4Bk1/6p1/1p4N1/pr2P1N1/3Q3K

#2

9 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Kf6
      • 2.Se4#
  • Tries
    • 1.Qc1+?
      • 1...Kf6
        • 2.Se4#
        • 2.Sh5#
      • 1...Rd2!
    • 1.Qd2+?
      • 1...Kf6
        • 2.Se4#
        • 2.Sh5#
      • 1...Rxd2!
  • Keys
    • 1.Qa1!
      • 1...Rb1+
        • 2.Bxb1#
      • 1...Kf6
        • 2.Se4#
      • 1...Rxe2
        • 2.Be4#
      • 1...Rc2
        • 2.Bxc2#
      • 1...Rd2
        • 2.Bd3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • K(e);S_FLIGHT::S(E)
  • Tries
    • Try
      • Q(A);CHECK
      • Refutation
        • R(b);P_SPINR(b)
    • Try
      • Q(A);CHECK
      • Refutation
        • R(b);XQ(A)
  • Actual
    • Q(A);
    • Vars
      • R(b);CHECK::R(F)+B(G),XR(b)
      • K(e);P_SPINR(b),S_FLIGHT::S(E)
      • R(b);XP(C)::R(F)+B(G)
      • R(b);::R(F)+B(G),XR(b)
      • R(b);::R(F)+B(G)
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