MESON Chess Problem Database

Problem Display
PID: 184276 (3n1B2/N3R3/r3q3/5Q2/1ppkP3/2p1N1P1/2P2p2/5K1B w - - 0 1)

Ianovcic, Anatole Felix

Prize=, Romania Libera, 1950

3n1B2/N3R3/r3q3/5Q2/1ppkP3/2p1N1P1/2P2p2/5K1B

#2

10 + 8

78 Bulletin Ouvrier des Echecs 1955

SOLUTION

  • SOUND
  • Sets
    • 1...Kxe3
      • 2.Qxf2#
    • 1...Qxe4
      • 2.Rxe4#
  • Tries
    • 1.Qxf2?
      • threat
        • 2.Sg4#
      • 1...Qh3+
        • 2.Sg2#
      • 1...Kc5
        • 2.Sf5#
      • 1...Ke5
        • 2.Sxc4#
      • 1...Qxe4
        • 2.Rxe4#
      • 1...Qg4
        • 2.Sd1#
        • 2.Sg2#
        • 2.Sxg4#
        • 2.Sd5#
        • 2.Sf5#
      • 1...Qf5
        • 2.Sxf5#
      • 1...Qf7
        • 2.Sf5#
      • 1...Qf6
        • 2.Sf5#
      • 1...Qh6
        • 2.Sf5#
      • 1...Ra1+!
  • Keys
    • 1.Sb5+!
      • 1...Kxe3
        • 2.Qxf2#
        • 2.Qf4#
        • 2.Qg5#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 2
  • Sets
    • K(e);OGATEB,S_FLIGHT,XS(D)::QAB1(G),XP(a)
    • Q(g);OGATE,XP(F)::R1(I),XQ(g)
  • Tries
    • Try
      • Q(G);XP(a)
      • Threat
        • QAB(G)+S(D)
      • Vars
        • Q(g);CHECK::QAB(G)+S(D)
        • K(e);S_FLIGHT::QAB(G)+S(D)
        • K(e);P_SPINQ(g),S_FLIGHT::S(D),XP(d)
        • Q(g);OGATE,XP(F)::R1(I),XQ(g)
        • Q(g);P_PINQ(G)::QAB(G)+S(D),DCHECK,XQ(g)
        • Q(g);P_PINQ(G)::QAB(G)+S(D),DCHECK
        • Q(g);::QAB(G)+S(D),DCHECK
      • Refutation
        • R(f);CHECK
  • Actual
    • S(H);CHECK
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Developed and maintained by Brian Stephenson.
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