MESON Chess Problem Database

Problem Display
PID: 37983 (5K2/3p3R/4k1N1/8/6n1/3Q4/8/8 w - - 0 1)

Derevenko, A

Shakhmaty v SSSR, 1936

5K2/3p3R/4k1N1/8/6n1/3Q4/8/8

#2

4 + 3

2012 Miniature Chess Problems from Many Countries 1981
5454 Near Snap 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Sf6
      • 2.Re7#
  • Keys
    • 1.Rf7!
      • threat
        • 2.Qxd7#
      • 1...d5
        • 2.Qa6#
      • 1...Se5
        • 2.Sf4#
      • 1...Sf6
        • 2.Re7#
      • 1...d6
        • 2.Qf5#

This anticipates 102167(1956)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • S(a);SBLOCK::R1(C)
  • Actual
    • R(C);
    • Threat
      • QAB1(A),XP(c)
    • Vars
      • P(c);N_GUARD,SBLOCK::QAR(A)
      • S(a);SBLOCK::S(B)
      • S(a);SBLOCK::R1(C)
      • P(c);SBLOCK::QAB1(A)
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