MESON Chess Problem Database

Problem Display
PID: 257893 (5Bn1/q2p4/p1r2kB1/r5NK/p4Pp1/8/4Q3/b6b w - - 0 1)

Andrade, Barry Jack da Costa

British Chess Magazine, 1934

5Bn1/q2p4/p1r2kB1/r5NK/p4Pp1/8/4Q3/b6b

#2

6 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Rxg5+
      • 2.fxg5#
    • 1...Bd5
      • 2.Sh7#
    • 1...Sh6
      • 2.Qe7#
    • 1...Se7
      • 2.Qxe7#
    • 1...d6
      • 2.Qe6#
  • Keys
    • 1.Qe8!
      • threat
        • 2.Qf7#
      • 1...Rxg5+
        • 2.fxg5#
      • 1...Bd5
        • 2.Sh7#
      • 1...Sh6
        • 2.Qe7#
        • 2.Qd8#
      • 1...d5
        • 2.Qxc6#
      • 1...d6
        • 2.Qe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • R(e);CHECK,OGATE,XS(C)::P(B),XR(e)
    • B(b);N_PINS(C)::S(C)
    • S(k);N_GUARD::QAB1(A)
    • S(k);N_GUARD::QAB1(A),XS(k)
    • P(j);N_GUARD,S_CUTR(g)::QAR1(A)
  • Actual
    • Q(A);
    • Threat
      • QAR1(A)
    • Vars
      • R(e);CHECK,OGATE,XS(C)::P(B),XR(e)
      • B(b);N_PINS(C)::S(C)
      • P(j);N_PINS(C),OGATE::QAR(A),XR(g)
      • P(j);N_GUARD,S_CUTR(g)::QAR1(A)
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