MESON Chess Problem Database

Problem Display
PID: 242208 (1n5K/1Npp1Q2/6p1/2PNk3/R4p2/3p1b1B/3Ppbn1/4r3 w - - 0 1)

Kisis, Imants J

Szachy, 1966

1n5K/1Npp1Q2/6p1/2PNk3/R4p2/3p1b1B/3Ppbn1/4r3

#2

8 + 12

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Bxd5
      • 2.Qg7#
    • 1...g5
      • 2.Qf5#
    • 1...d6
      • 2.Qe6#
  • Tries
    • 1.Sc3?
      • threat
        • 2.Qe7#
        • 2.Qg7#
      • 1...Bxc5
        • 2.Qg7#
      • 1...Bg4
        • 2.Re4#
      • 1...Bd5
        • 2.Qg7#
      • 1...Sc6
        • 2.Qg7#
      • 1...Bh4!
    • 1.Sf6?
      • threat
        • 2.Qe7#
      • 1...Bg4
        • 2.Sxg4#
      • 1...Bd5
        • 2.Sg4#
      • 1...Sc6
        • 2.Sxd7#
      • 1...Bxc5!
    • 1.Se7?
      • threat
        • 2.Sxg6#
        • 2.Qg7#
      • 1...Bh4
        • 2.Sxg6#
      • 1...Be4
        • 2.Qg7#
      • 1...Bg4
        • 2.Sxg6#
      • 1...Bh5
        • 2.Qg7#
      • 1...Sh4
        • 2.Qxf4#
        • 2.Qg7#
      • 1...g5
        • 2.Sg6#
        • 2.Qf5#
        • 2.Qg7#
      • 1...Bd4!
  • Keys
    • 1.Sb4!
      • threat
        • 2.Sxd3#
      • 1...Kd4
        • 2.Sc6#
      • 1...Ke4
        • 2.Qd5#
      • 1...Bd4
        • 2.Qe7#
      • 1...Be4
        • 2.Qg7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 3
  • Sets
    • B(f);SBLOCK,XS(E)::QAB(G)
    • P(i);N_GUARD::QAR1(G)
    • P(k);N_GUARD::QAR1(G)
  • Tries
    • Try
      • S(E);
      • Threat
        • DUALS(2)
      • Vars
        • B(c);XP(D)::QAB(G)
        • B(f);N_GUARD::R1(C)
        • B(f);::QAB(G)
        • S(l);::QAB(G)
      • Refutation
        • B(c);
    • Try
      • S(E);
      • Threat
        • QAR2(G)
      • Vars
        • B(f);N_GUARD::S(E),XB(f)
        • B(f);N_GUARD::S(E)
        • S(l);N_GUARD::S(E),XP(k)
      • Refutation
        • B(c);XP(D)
    • Try
      • S(E);
      • Threat
        • DUALS(2)
      • Vars
        • B(c);::S(E),XP(i)
        • B(f);::QAB(G)
        • B(f);::S(E),XP(i)
      • Refutation
        • B(c);
  • Actual
    • S(E);
    • Threat
      • S(E),XP(e)
    • Vars
      • K(h);S_FLIGHT::R(C)+S(E),DCHECK
      • K(h);P-FLIGHT::QAB1(G)
      • B(c);SBLOCK::QAR2(G)
      • B(f);SBLOCK::QAB(G)
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