MESON Chess Problem Database

Problem Display
PID: 21976 (8/5K2/3p2P1/2npk2p/1Q5N/3P4/8/8 w - - 0 1)

Ludanyi, Antal

The Field, 1922

8/5K2/3p2P1/2npk2p/1Q5N/3P4/8/8

#2

5 + 5

3242 BCPS Rapid Solving (Cheltenham) 2001
5454 Near Snap 2010

SOLUTION

  • SOUND
  • Tries
    • 1.Qg4?
      • threat
        • 2.Sf3#
        • 2.d4#
      • 1...Sxd3
        • 2.Sf3#
      • 1...Se4
        • 2.Sf3#
      • 1...d4
        • 2.Qf5#
        • 2.Qg5#
      • 1...Sb3
        • 2.Sf3#
      • 1...Se6
        • 2.Sf3#
      • 1...hxg4!
  • Keys
    • 1.Qd2!
      • 1...Kd4
        • 2.Sf3#
      • 1...Sxd3
        • 2.Qe3#
      • 1...Sb3
        • 2.Qe3#
      • 1...Sa4
        • 2.Qe3#
      • 1...Se4
        • 2.d4#
      • 1...Sa6
        • 2.Qe3#
      • 1...Se6
        • 2.Qe3#
      • 1...Sb7
        • 2.Qe3#
      • 1...Sd7
        • 2.Qe3#
      • 1...d4
        • 2.Qg5#

Anticipated by 95564(1892), 193883(1916)

This anticipates 87436(1950)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 10
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(B);
      • Threat
        • DUALS(2)
      • Vars
        • S(a);XP(A)::S(C)
        • S(a);::S(C)
      • Refutation
        • P(d);XQ(B)
  • Actual
    • Q(B);
    • Vars
      • K(c);S_FLIGHT::S(C)
      • S(a);N_GUARD,XP(A)::QAR2(B)
      • S(a);N_GUARD::QAR2(B)
      • S(a);SBLOCK::P(A)
      • P(b);SBLOCK::QAR2(B)
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