MESON Chess Problem Database

Problem Display
PID: 78893 (4N3/4p3/R4n1r/Knkbp3/2P5/1p1p1P1q/1Q1N4/8 w - - 0 1)

Pituk, Alexander

Umenie 64, 2001

4N3/4p3/R4n1r/Knkbp3/2P5/1p1p1P1q/1Q1N4/8

#2

7 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Sd4
      • 2.Qa3#
  • Tries
    • 1.Qc3?
      • threat
        • 2.Sxb3#
      • 1...Bxc4
        • 2.Qxc4#
      • 1...Sd4
        • 2.Qb4#
      • 1...b2
        • 2.Sb3#
      • 1...Sxc3!
  • Keys
    • 1.Qc1!
      • threat
        • 2.Sxb3#
      • 1...Kd4
        • 2.Sxb3#
      • 1...Bxc4
        • 2.Qxc4#
      • 1...Sc3
        • 2.Qg1#
      • 1...Sd4
        • 2.Qa3#
      • 1...b2
        • 2.Sb3#

This is a version of 39406

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • S(d);N_GUARD,SBLOCK::QAB(A)
  • Tries
    • Try
      • Q(A);
      • Threat
        • S(B),XP(a)
      • Vars
        • B(f);OGATE,P_SPINB(f),XP(D)::QAR1(A),XB(f)
        • S(d);SBLOCK::QAB1(A)
        • P(a);::S(B)
      • Refutation
        • S(d);XQ(A)
  • Actual
    • Q(A);
    • Threat
      • S(B),XP(a)
    • Vars
      • K(e);S_FLIGHT::S(B),XP(a)
      • B(f);OGATE,P_SPINB(f),XP(D)::QAR1(A),XB(f)
      • S(d);N_GUARD::QAB(A)
      • S(d);N_GUARD,SBLOCK::QAB(A)
      • P(a);::S(B)
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