MESON Chess Problem Database

Problem Display
PID: 263123 (5r1b/7Q/5k2/8/5K2/4R3/8/8 w - - 0 1)

Nagovitsin, Eduard Nikolaevich

2nd Comm., SuperProblem, 2021

5r1b/7Q/5k2/8/5K2/4R3/8/8

#2

3 + 3

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Rf7
      • 2.Qh6#
    • 1...Bg7
      • 2.Qf5#
  • Keys
    • 1.Re7!
      • 1...Rf7
        • 2.Qxf7#
      • 1...Bg7
        • 2.Qxg7#
      • 1...Ra8
        • 2.Qf7#
      • 1...Rb8
        • 2.Qf7#
      • 1...Rc8
        • 2.Qf7#
      • 1...Rd8
        • 2.Qf7#
      • 1...Re8
        • 2.Qf7#
      • 1...Rg8
        • 2.Qf7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 2
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • R(b);SBLOCK::QAR2(C)
    • B(c);SBLOCK::QAR1(C)
  • Actual
    • R(A);
    • Vars
      • R(b);N_GUARD::QAR1(C),XR(b)
      • B(c);N_GUARD::QAB1(C),XB(c)
      • R(b);N_GUARD::QAR1(C)
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