MESON Chess Problem Database

Problem Display
PID: 94593 (8/1N4K1/8/5p2/2pk4/5Q2/N7/8 w - - 0 1)

Kondratiev, Pavel E

Vecherni Magadan, 1997

8/1N4K1/8/5p2/2pk4/5Q2/N7/8

#2

4 + 3

5454 Near Snap 2009
6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Sc3?
      • 1...Ke5
        • 2.Qe3#
      • 1...f4!
    • 1.Qe3+?
      • 1...Kd5
        • 2.Sb4#
      • 1...Kxe3!
  • Keys
    • 1.Sb4!
      • threat
        • 2.Sc6#
      • 1...Ke5
        • 2.Qe3#
      • 1...c3
        • 2.Qf4#

Anticipated by 94515(1945), 212400(1968), 39223(1972), 226975(1984)

This anticipates 165118(2008)

FEATURES

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