MESON Chess Problem Database

Problem Display
PID: 107321 (8/8/8/7p/6NQ/6p1/6p1/3K2k1 w - - 0 1)

Kintzig, Robert

Vasarnapi Ujsag, 1909

8/8/8/7p/6NQ/6p1/6p1/3K2k1

#2

3 + 4

3713 Snap 2009
6490 yacpdb 2009
5454 Near Snap 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Qxg3?
      • threat
        • 2.Qe1#
      • 1...Kf1
        • 2.Qe1#
        • 2.Qf2#
      • 1...Kh1
        • 2.Qh2#
      • 1...hxg4!
  • Keys
    • 1.Sh2!
      • 1...Kh1
        • 2.Sf3#
      • 1...Kf2
        • 2.Qd4#
      • 1...gxh2
        • 2.Qe1#

Anticipated by 9360(1901), 144059(1907)

This anticipates 142465(1972), 27356(2001), 198081(2015)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(C);P_PINP(b),XP(c)
      • Threat
        • QAR2(C)
      • Vars
        • K(a);N_SPINP(b),P-FLIGHT::QAR1(C)
      • Refutation
        • P(d);XS(B)
  • Actual
    • S(B);
    • Vars
      • K(a);P-FLIGHT::QAR(C)+S(B)
      • K(a);P_SPINP(c),S_FLIGHT::QAB(C)
      • P(c);OGATE,SBLOCK,XS(B)::QAR2(C)
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