MESON Chess Problem Database

Problem Display
PID: 24365 (2Q3b1/8/2NP4/3k4/5K2/8/2R5/8 w - - 0 1)

Kintzig, Robert

Uj Nemezdek, 1923

2Q3b1/8/2NP4/3k4/5K2/8/2R5/8

#2

5 + 2

56 The Problemist 2005
56 The Problemist 2006

SOLUTION

  • SOUND
  • Tries
    • 1.Sb4+?
      • 1...Kd4
        • 2.Rd2#
        • 2.Qc3#
        • 2.Qc5#
      • 1...Kxd6!
    • 1.Se5?
      • threat
        • 2.Rd2#
      • 1...Kd4
        • 2.Rd2#
        • 2.Qc5#
      • 1...Kxd6
        • 2.Qd7#
      • 1...Bh7!
    • 1.Se7+?
      • 1...Kd4
        • 2.Rd2#
        • 2.Qc3#
      • 1...Kxd6!
    • 1.Sb8?
      • threat
        • 2.Rd2#
      • 1...Kd4
        • 2.Rd2#
      • 1...Kxd6
        • 2.Qd7#
      • 1...Bh7!
    • 1.Sd8?
      • threat
        • 2.Rd2#
        • 2.Qc5#
      • 1...Kd4
        • 2.Rd2#
      • 1...Bh7
        • 2.Qc5#
      • 1...Kxd6!
  • Keys
    • 1.Sd4!
      • threat
        • 2.Qc5#
      • 1...Kxd4
        • 2.Rd2#
      • 1...Kxd6
        • 2.Qd8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);CHECK
      • Refutation
        • K(a);P-FLIGHT,XP(D)
    • Try
      • S(C);
      • Threat
        • R(A)
      • Vars
        • K(a);OGATEB,P-FLIGHT,XP(D)::QAR1(E)
      • Refutation
        • B(b);
    • Try
      • S(C);CHECK
      • Refutation
        • K(a);P-FLIGHT,XP(D)
    • Try
      • S(C);
      • Threat
        • R(A)
      • Vars
        • K(a);P-FLIGHT::R(A)
        • K(a);OGATEB,P-FLIGHT,XP(D)::QAR1(E)
      • Refutation
        • B(b);
    • Try
      • S(C);
      • Threat
        • DUALS(2)
      • Vars
        • K(a);P-FLIGHT::R(A)
        • B(b);::QAR1(E)
      • Refutation
        • K(a);P-FLIGHT,XP(D)
  • Actual
    • S(C);
    • Threat
      • QAR1(E)
    • Vars
      • K(a);OGATEB,P-FLIGHT,XS(C)::R(A)
      • K(a);OGATEB,P-FLIGHT,XP(D)::QAR2(E)
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