MESON Chess Problem Database

Problem Display
PID: 257644 (8/r1pQ3K/r3R1Bp/q7/1p1ppP2/3k4/2R5/N7 w - - 0 1)

Andrade, Barry Jack da Costa

British Chess Magazine, 1934

8/r1pQ3K/r3R1Bp/q7/1p1ppP2/3k4/2R5/N7

#2

7 + 9

SOLUTION

  • SOUND
  • Keys
    • 1.Rxe4!
      • threat
        • 2.Qh3#
        • 2.Qxd4#
      • 1...Qxa1
        • 2.Re6#
      • 1...Rxg6
        • 2.Qxd4#
      • 1...Qf5
        • 2.Qxd4#
      • 1...Qb6
        • 2.Re6#
        • 2.Qh3#
      • 1...Qc5
        • 2.Qh3#
      • 1...Qd5
        • 2.Qh3#
      • 1...Qe5
        • 2.Qh3#
      • 1...Qg5
        • 2.Qxd4#
      • 1...Qh5
        • 2.Qxd4#
      • 1...Rd6
        • 2.Qh3#
      • 1...Re6
        • 2.Qxd4#
      • 1...c5
        • 2.Re6#
      • 1...c6
        • 2.Re5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 12
    • REMOVED MATES = 0
  • Sets
  • Actual
    • R(D);XP(d)
    • Threat
      • DUALS(2)
    • Vars
      • Q(e);N_GUARD,XS(A)::B(E)+R(D)
      • R(f);XB(E)::QAR1(F),XP(c)
      • Q(e);P_PINB(E)::QAR1(F),XP(c)
      • Q(e);::QAR(F)
      • Q(e);N_SPINP(c)::QAR(F)
      • Q(e);::QAR1(F),XP(c)
      • R(f);N_SPINP(c)::QAR(F)
      • R(f);::QAR1(F),XP(c)
      • P(i);P_PINQ(F),S_CUTQ(e)::B(E)+R(D)
      • P(i);P_PINQ(F),S_CUTR(f)::B(E)+R(D)
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