MESON Chess Problem Database

Problem Display
PID: 70889 (1q6/pP1N1p2/3n1r2/r6R/Q3p1Bb/p1Bk2nN/K2P4/8 w - - 0 1)

Peris Pardo, Julio

4th Prize, Enroque!!, 1949

1q6/pP1N1p2/3n1r2/r6R/Q3p1Bb/p1Bk2nN/K2P4/8

#2

9 + 11

70 American Chess Problemist 1949

SOLUTION

  • SOUND
  • Sets
    • 1...Rc5
      • 2.Sxc5#
    • 1...Rd5
      • 2.Rxd5#
    • 1...Re5
      • 2.Sxe5#
    • 1...Ra6
      • 2.Sc5#
      • 2.Se5#
      • 2.Rd5#
    • 1...Rf2
      • 2.Sxf2#
    • 1...Rf4
      • 2.Sxf4#
    • 1...Re6
      • 2.Sf2#
      • 2.Sf4#
    • 1...Rg6
      • 2.Sf2#
      • 2.Sf4#
    • 1...Rh6
      • 2.Sf2#
      • 2.Sf4#
    • 1...Sgf5
      • 2.Sf4#
    • 1...Sb5
      • 2.Sc5#
    • 1...Sdf5
      • 2.Sf2#
  • Keys
    • 1.Bd1!
      • threat
        • 2.Qd4#
      • 1...Rxa4
        • 2.Se5#
      • 1...Rd5
        • 2.Rxd5#
      • 1...Se2
        • 2.Bc2#
      • 1...Sgf5
        • 2.Sf4#
      • 1...Sc4
        • 2.Qc2#
      • 1...Sb5
        • 2.Sc5#
      • 1...Sdf5
        • 2.Sf2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 4
  • Sets
    • R(f);N_GUARD::S(I),XR(f)
    • R(f);N_GUARD::R(G),XR(f)
    • R(h);N_GUARD,P_PINP(B)::S(D),XR(h)
    • R(h);N_GUARD::S(D),XR(h)
    • S(c);S_CUTR(h)::S(D)
    • S(g);S_CUTR(f)::S(I)
    • S(g);S_CUTR(h)::S(D)
  • Actual
    • B(F);
    • Threat
      • QAR1(E)
    • Vars
      • R(f);N_GUARD,XQ(E)::S(I)
      • R(f);N_GUARD::R(G),XR(f)
      • S(c);SBLOCK::B(F)
      • S(c);S_CUTR(h)::S(D)
      • S(g);SBLOCK::QAB1(E)
      • S(g);S_CUTR(f)::S(I)
      • S(g);S_CUTR(h)::S(D)
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