MESON Chess Problem Database

Problem Display
PID: 110090 (8/8/2ppp1K1/2PkP3/3N4/2Q5/8/1R3R2 w - - 0 1)

Kisis, Imants J

Hlas l'udu, 1980

8/8/2ppp1K1/2PkP3/3N4/2Q5/8/1R3R2

#2

7 + 4

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Sb3?
      • threat
        • 2.Qd4#
      • 1...Ke4
        • 2.Qd4#
      • 1...dxe5
        • 2.Qd3#
      • 1...dxc5!
    • 1.Sf3?
      • threat
        • 2.Qd4#
      • 1...Ke4
        • 2.Qd4#
      • 1...dxc5
        • 2.Qd3#
      • 1...dxe5!
    • 1.Qc4+?
      • 1...Ke4
        • 2.Rbe1#
      • 1...Kxe5
        • 2.Sf3#
        • 2.Sxc6#
        • 2.Rbe1#
      • 1...Kxc4!
  • Keys
    • 1.Qd3!
      • 1...Kxc5
        • 2.Sxe6#
      • 1...Kxe5
        • 2.Sxc6#
      • 1...dxc5
        • 2.Sf3#
      • 1...dxe5
        • 2.Sb3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);
      • Threat
        • QAR1(C)
      • Vars
        • K(a);S_FLIGHT::QAR1(C)
        • P(c);SBLOCK,XP(F)::QAR2(C)
      • Refutation
        • P(c);XP(E)
    • Try
      • S(D);
      • Threat
        • QAR1(C)
      • Vars
        • K(a);S_FLIGHT::QAR1(C)
        • P(c);SBLOCK,XP(E)::QAR2(C)
      • Refutation
        • P(c);XP(F)
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);S_FLIGHT::R(A)
      • Refutation
        • K(a);S_FLIGHT,XQ(C)
  • Actual
    • Q(C);
    • Vars
      • K(a);P-FLIGHT,XP(E)::S(D),XP(d)
      • K(a);P-FLIGHT,XP(F)::S(D),XP(b)
      • P(c);SBLOCK,XP(E)::QAR(C)+S(D)
      • P(c);SBLOCK,XP(F)::QAR(C)+S(D)
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