MESON Chess Problem Database

Problem Display
PID: 232625 (1K2N3/1R3bpN/p2Bn1p1/2pr1kpp/2R2P2/qn6/3p2Q1/br3B2 w - - 0 1)

Hoffmann, Fritz

Freie Presse, 1968

1K2N3/1R3bpN/p2Bn1p1/2pr1kpp/2R2P2/qn6/3p2Q1/br3B2

#2

9 + 15

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rb2
      • 2.Rxf7#
    • 1...Rd3
      • 2.Bxd3#
    • 1...Rd4
      • 2.Rxf7#
    • 1...Re5
      • 2.Rxf7#
    • 1...Rxd6
      • 2.Sxd6#
    • 1...Bd4
      • 2.Bd3#
    • 1...Sd4
      • 2.Sxg7#
    • 1...gxf4
      • 2.Qh3#
    • 1...g4
      • 2.Qe4#
  • Keys
    • 1.Be2!
      • threat
        • 2.Qe4#
      • 1...Sed4
        • 2.Sxg7#
      • 1...Rd4
        • 2.Rxf7#
      • 1...Re5
        • 2.Rxf7#
      • 1...Bd4
        • 2.Bd3#
      • 1...Sbd4
        • 2.Qxd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 5
  • Sets
    • R(b);S_CUTB(a)::R(F),XB(n)
    • R(g);N_GUARD::B(A),XR(g)
    • R(g);S_CUTB(a)::R(F),XB(n)
    • R(g);XB(E)::S(I),XR(g)
    • B(a);S_CUTR(g)::B(A)
    • S(l);N_GUARD,S_CUTB(a)::S(I),XP(o)
    • P(i);N_GUARD,XP(D)::QAB(B)
    • P(i);SBLOCK::QAB1(B)
  • Actual
    • B(A);
    • Threat
      • QAB1(B)
    • Vars
      • S(l);N_GUARD,S_CUTB(a)::S(I),XP(o)
      • R(g);S_CUTB(a)::R(F),XB(n)
      • B(a);S_CUTR(g)::B(A)
      • S(e);P_PINR(F),S_CUTB(a)::QAR2(B),XR(g)
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