MESON Chess Problem Database

Problem Display
PID: 226861 (2BB4/2bn4/KN3p1r/p5r1/R3pk1N/5pR1/5P2/6Qq w - - 0 1)

Beszczynski, Jan

Il Due Mosse, 1954

2BB4/2bn4/KN3p1r/p5r1/R3pk1N/5pR1/5P2/6Qq

#2

9 + 10

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Rxg3
      • 2.Qxg3#
    • 1...Re5
      • 2.Rg4#
    • 1...Be5
      • 2.Sd5#
    • 1...Se5
      • 2.Sd5#
  • Keys
    • 1.Bxc7+!
      • 1...Re5
        • 2.Sd5#
        • 2.Rg4#
      • 1...Se5
        • 2.Sd5#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 3
  • Sets
    • R(f);OGATE,XR(C)::QAB1(A),XR(f)
    • R(f);N_GUARD,SBLOCK::R1(C)
    • B(i);SBLOCK,S_CUTR(f)::S(G)
    • S(j);SBLOCK,S_CUTR(f)::S(G)
  • Actual
    • B(I);CHECK,XB(i)
    • Vars
      • S(j);P_SPINS(j)::S(G)
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