MESON Chess Problem Database

Problem Display
PID: 61647 (8/6N1/8/1R2P1p1/r1nB1kbn/2QP4/3p2R1/6NK w - - 0 1)

Morra, Juan Carlos

Het Belgisch Schaakbord (L'Echiquier Belge), 1956

8/6N1/8/1R2P1p1/r1nB1kbn/2QP4/3p2R1/6NK

#2

9 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Bf3
      • 2.Sh3#
    • 1...Bf5
      • 2.Sh5#
    • 1...Sb2
      • 2.Qxd2#
    • 1...Sa3
      • 2.Qxd2#
    • 1...Sa5
      • 2.Qxd2#
    • 1...Sxe5
      • 2.Qxd2#
    • 1...Sb6
      • 2.Qxd2#
    • 1...Sd6
      • 2.Qxd2#
    • 1...Sf3
      • 2.Se2#
    • 1...Sf5
      • 2.Se6#
  • Tries
    • 1.Se2+?
      • 1...Kf3
        • 2.Rf2#
      • 1...Bxe2!
    • 1.Qxd2+?
      • 1...Se3
        • 2.Bxe3#
        • 2.Qxe3#
      • 1...Sxd2!
  • Keys
    • 1.Bf2!
      • threat
        • 2.Qd4#
      • 1...Sxe5
        • 2.Qxd2#
        • 2.Qxe5#
      • 1...Bf3
        • 2.Sh3#
      • 1...Bf5
        • 2.Sh5#
      • 1...Sb2
        • 2.Qxd2#
      • 1...Sa3
        • 2.Qxd2#
      • 1...Se3
        • 2.Bg3#
      • 1...Sa5
        • 2.Qxd2#
      • 1...Sb6
        • 2.Qxd2#
      • 1...Sd6
        • 2.Qxd2#
      • 1...Sf3
        • 2.Se2#
      • 1...Sf5
        • 2.Se6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • B(e);N_GUARD,P_PINR(C),SBLOCK::S(A)
    • B(e);N_GUARD,SBLOCK::S(I)
    • S(c);N_GUARD::QAB(D),XP(a)
    • S(c);N_GUARD,XP(H)::QAB(D),XP(a)
    • S(f);SBLOCK,S_CUTB(e)::S(A)
    • S(f);SBLOCK,S_CUTB(e)::S(I)
  • Tries
    • Try
      • S(A);CHECK
      • Vars
        • K(d);P-FLIGHT::R1(C)
      • Refutation
        • B(e);XS(A)
    • Try
      • Q(D);CHECK,XP(a)
      • Refutation
        • S(c);XQ(D)
  • Actual
    • B(F);
    • Threat
      • QAR2(D)
    • Vars
      • B(e);N_GUARD,P_PINR(C),SBLOCK::S(A)
      • B(e);N_GUARD,SBLOCK::S(I)
      • S(c);N_GUARD::QAB(D),XP(a)
      • S(c);SBLOCK::B(F)
      • S(f);SBLOCK,S_CUTB(e)::S(A)
      • S(f);SBLOCK,S_CUTB(e)::S(I)
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