MESON Chess Problem Database

Problem Display
PID: 172232 (kbK5/rp6/7R/8/8/8/1Q6/8 w - - 0 1)

Andreev, Aleksandr Grigorevich

Kuban segodniya, 1996

kbK5/rp6/7R/8/8/8/1Q6/8

#2

3 + 4

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Ra1
      • 2.Qxb7#
    • 1...Ra2
      • 2.Qxb7#
    • 1...Ra3
      • 2.Qxb7#
    • 1...Ra4
      • 2.Qxb7#
    • 1...Ra5
      • 2.Qxb7#
    • 1...Ra6
      • 2.Qxb7#
  • Keys
    • 1.Ra6!
      • threat
        • 2.Qxb7#
      • 1...bxa6
        • 2.Qxb8#
      • 1...b5
        • 2.Qg2#
      • 1...b6
        • 2.Qg2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 6
  • Sets
    • R(a);N_GUARD::QAB1(A),XP(b)
  • Actual
    • R(B);P_PINR(a)
    • Threat
      • QAB1(A),XP(b)
    • Vars
      • P(b);N_SPINR(a),OGATE,XR(B)::QAR1(A),XB(d)
      • P(b);OGATEB::QAB(A)
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