MESON Chess Problem Database

Problem Display
PID: 248853 (8/3K4/4N3/3Nkp2/1p6/8/6Q1/8 w - - 0 1)

Zimmer, Eligiusz

Zadachi i Etyudi, 2003

8/3K4/4N3/3Nkp2/1p6/8/6Q1/8

#2

4 + 3

SOLUTION

  • SOUND
  • Tries
    • 1.Sc3?
      • threat
        • 2.Qg7#
      • 1...Kf6
        • 2.Qg7#
      • 1...f4
        • 2.Qg5#
      • 1...bxc3!
    • 1.Sxb4?
      • 1...Kf6
        • 2.Qg7#
      • 1...f4!
    • 1.Sdf4?
      • 1...Kf6
        • 2.Qg7#
      • 1...b3!
    • 1.Qb2+?
      • 1...Kxd5
        • 2.Qd4#
      • 1...Ke4!
    • 1.Qg7+?
      • 1...Kxd5
        • 2.Qd4#
      • 1...Ke4!
  • Keys
    • 1.Sf6!
      • threat
        • 2.Qb2#
      • 1...Kxf6
        • 2.Qg7#
      • 1...f4
        • 2.Qg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);
      • Threat
        • QAB(A)
      • Vars
        • K(b);S_FLIGHT::QAB1(A)
        • P(c);OGATEB::QAR2(A)
      • Refutation
        • P(a);XS(B)
    • Try
      • S(B);XP(a)
      • Vars
        • K(b);S_FLIGHT::QAB1(A)
      • Refutation
        • P(c);
    • Try
      • S(B);
      • Vars
        • K(b);S_FLIGHT::QAB1(A)
      • Refutation
        • P(a);
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);P-FLIGHT,XS(B)::QAR1(A)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);OGATE,P-FLIGHT,XS(B)::QAR1(A)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • S(B);
    • Threat
      • QAB(A)
    • Vars
      • K(b);OGATEB,S_FLIGHT,XS(B)::QAB1(A)
      • P(c);OGATEB::QAR2(A)
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