MESON Chess Problem Database

Problem Display
PID: 174761 (8/1K5Q/P2P1p2/4bNR1/5pn1/2pN1k1b/4p1pP/1B1nr3 w - - 0 1)

Zajic, Helmut

2nd Comm., Bonn, 1992

8/1K5Q/P2P1p2/4bNR1/5pn1/2pN1k1b/4p1pP/1B1nr3

#2

9 + 11

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Sdf2
      • 2.Sxe1#
    • 1...Sde3
      • 2.Sh4#
    • 1...Sgf2
      • 2.Sxe1#
    • 1...Sge3
      • 2.Sh4#
  • Tries
    • 1.Kb8?
      • threat
        • 2.Qb7#
      • 1...Ke4
        • 2.Qb7#
      • 1...Sdf2
        • 2.Sxe1#
      • 1...Sde3
        • 2.Sh4#
      • 1...Sgf2
        • 2.Sxe1#
      • 1...Sge3
        • 2.Sh4#
      • 1...Bxd6+!
    • 1.Kc8?
      • threat
        • 2.Qb7#
      • 1...Ke4
        • 2.Qb7#
      • 1...Sdf2
        • 2.Sxe1#
      • 1...Sde3
        • 2.Sh4#
      • 1...Sgf2
        • 2.Sxe1#
      • 1...Sge3!
  • Keys
    • 1.Ka8!
      • threat
        • 2.Qb7#
      • 1...Ke4
        • 2.Qb7#
      • 1...Sdf2
        • 2.Sxe1#
      • 1...Sde3
        • 2.Sh4#
      • 1...Sgf2
        • 2.Sxe1#
      • 1...Sge3
        • 2.Sh4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • S(a);SBLOCK::S(C),XR(b)
    • S(a);SBLOCK::S(D)
    • S(i);SBLOCK::S(C),XR(b)
    • S(i);SBLOCK::S(D)
  • Tries
    • Try
      • K(H);P-FLIGHT,P_SPINP(G)
      • Threat
        • QAB(I)
      • Vars
        • K(f);S_FLIGHT::QAB(I)
        • S(a);SBLOCK::S(C),XR(b)
        • S(a);SBLOCK::S(D)
        • S(i);SBLOCK::S(C),XR(b)
        • S(i);SBLOCK::S(D)
      • Refutation
        • B(j);CHECK,XP(G)
    • Try
      • K(H);S_FLIGHT
      • Threat
        • QAB(I)
      • Vars
        • K(f);S_FLIGHT::QAB(I)
        • S(a);SBLOCK::S(C),XR(b)
        • S(a);SBLOCK::S(D)
        • S(i);P_PINS(D),SBLOCK::S(C),XR(b)
      • Refutation
        • S(i);P_PINS(D)
  • Actual
    • K(H);S_FLIGHT
    • Threat
      • QAB(I)
    • Vars
      • K(f);S_FLIGHT::QAB(I)
      • S(a);SBLOCK::S(C),XR(b)
      • S(a);SBLOCK::S(D)
      • S(i);SBLOCK::S(C),XR(b)
      • S(i);SBLOCK::S(D)
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