MESON Chess Problem Database

Problem Display
PID: 172366 (Rn2K3/1k6/2R5/8/8/3Q4/1P6/8 w - - 0 1)

Andreev, Aleksandr Grigorevich

Bankovskaya gazeta, 1997

Rn2K3/1k6/2R5/8/8/3Q4/1P6/8

#2

5 + 2

5454 Near Snap 2018
6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Sa6
      • 2.Qxa6#
    • 1...Sd7
      • 2.Qa6#
  • Keys
    • 1.Rc8!
      • 1...Kb6
        • 2.Qb3#
      • 1...Kxa8
        • 2.Qa6#
      • 1...Kxc8
        • 2.Qd7#
      • 1...Sa6
        • 2.Qb5#
        • 2.Qxa6#
      • 1...Sc6
        • 2.Qb5#
        • 2.Qa6#
      • 1...Sd7
        • 2.Qa6#

Anticipated by 55463(0000), 30528(1899), 174929(1901)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • S(b);N_GUARD::QAB1(B),XS(b)
    • S(b);N_GUARD::QAB1(B)
  • Actual
    • R(C);
    • Vars
      • K(a);P-FLIGHT::QAR(B)
      • K(a);P_SPINS(b),S_FLIGHT,XR(D)::QAR2(B)
      • K(a);P_SPINS(b),S_FLIGHT,XR(C)::QAB1(B)
      • S(b);N_GUARD::QAB1(B)
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