MESON Chess Problem Database

Problem Display
PID: 60540 (8/8/2K5/1NP1pp1N/RB5p/4k2p/4PpnP/5B1Q w - - 0 1)

Kisis, Imants J

1st Prize, Shakhmaty, 1971

8/8/2K5/1NP1pp1N/RB5p/4k2p/4PpnP/5B1Q

#2

10 + 7

3753 FIDE Album (1971-1973) 1978

SOLUTION

  • SOUND
  • Sets
    • 1...Ke4
      • 2.Bd2#
    • 1...Sf4
      • 2.Qf3#
    • 1...e4
      • 2.Ra3#
  • Tries
    • 1.Sd6?
      • 1...Kd4
        • 2.Bd2#
      • 1...Se1
        • 2.Sxf5#
      • 1...Sf4
        • 2.Sxf5#
      • 1...e4
        • 2.Sxf5#
      • 1...f4!
    • 1.Sf4?
      • 1...Ke4
        • 2.Bd2#
      • 1...Kxf4
        • 2.Bd2#
      • 1...Sxf4
        • 2.Qf3#
      • 1...Se1
        • 2.Sd5#
      • 1...e4
        • 2.Sd5#
      • 1...exf4!
    • 1.Qxg2?
      • threat
        • 2.Ra3#
        • 2.Qf3#
      • 1...e4
        • 2.Ra3#
        • 2.Qxh3#
      • 1...hxg2!
  • Keys
    • 1.Sf6!
      • 1...Kf4
        • 2.Bd2#
      • 1...Se1
        • 2.Sd5#
      • 1...Sf4
        • 2.Qf3#
      • 1...e4
        • 2.Sd5#
      • 1...f4
        • 2.Ra3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • K(c);P-FLIGHT,P_SPINS(b)::R(E)+B(F)
    • S(b);OGATE::QAR1(B)
    • P(f);SBLOCK::R(E)
  • Tries
    • Try
      • S(G);
      • Vars
        • K(c);S_FLIGHT::R(E)+B(F)
        • S(b);::S(G),XP(g)
        • P(f);SBLOCK::S(G),XP(g)
      • Refutation
        • P(g);
    • Try
      • S(I);
      • Vars
        • K(c);P-FLIGHT,P_SPINS(b)::R(E)+B(F)
        • K(c);S_FLIGHT,XS(I)::R(E)+B(F),DCHECK
        • S(b);OGATE,XS(I)::QAR1(B)
        • S(b);::S(I)
        • P(f);SBLOCK::S(I)
      • Refutation
        • P(f);XS(I)
    • Try
      • Q(B);XS(b)
      • Threat
        • DUALS(2)
      • Refutation
        • P(d);XQ(B)
  • Actual
    • S(I);
    • Vars
      • K(c);S_FLIGHT::R(E)+B(F),DCHECK
      • S(b);::S(I)
      • S(b);OGATE::QAR1(B)
      • P(f);SBLOCK::S(I)
      • P(g);SBLOCK::R(E)
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