MESON Chess Problem Database

Problem Display
PID: 233759 (K7/1P3p2/pR2pN2/4k1B1/r3n2R/b1P1p2B/3NQ3/5n1b w - - 0 1)

Richter, Frank

Freie Presse, 2002

K7/1P3p2/pR2pN2/4k1B1/r3n2R/b1P1p2B/3NQ3/5n1b

#2

10 + 10

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rc4
      • 2.Sxc4#
    • 1...Ra5
      • 2.Sc4#
    • 1...Bf3
      • 2.Sxf3#
    • 1...Bb4
      • 2.Sc4#
  • Tries
    • 1.Qd3?
      • threat
        • 2.Sd7#
      • 1...Rd4
        • 2.Qxd4#
        • 2.cxd4#
      • 1...Sc5
        • 2.Qd6#
      • 1...Sxf6!
    • 1.Qc4?
      • threat
        • 2.Sd7#
      • 1...Rxc4
        • 2.Sxc4#
      • 1...Sxf6
        • 2.Bf4#
      • 1...Sc5!
  • Keys
    • 1.Qf3!
      • threat
        • 2.Qf4#
      • 1...Bxf3
        • 2.Sxf3#
      • 1...Sexd2
        • 2.Sd7#
      • 1...Sxc3
        • 2.Sd7#
      • 1...Sxg5
        • 2.Sd7#
      • 1...Sxf6
        • 2.Bxf6#
      • 1...Sf2
        • 2.Sd7#
      • 1...Seg3
        • 2.Sd7#
      • 1...Sc5
        • 2.b8Q#
        • 2.b8B#
      • 1...Sd6
        • 2.Sd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 3
  • Sets
    • R(e);N_GUARD::S(A),XR(e)
    • R(e);N_GUARD::S(A)
    • B(b);N_GUARD::S(A),XB(b)
    • B(c);S_CUTR(e)::S(A)
  • Tries
    • Try
      • Q(B);
      • Threat
        • S(H)
      • Vars
        • S(f);N_GUARD,P_PINP(I),S_CUTB(c)::QAB1(B)
      • Refutation
        • S(f);P_PINP(I),XS(H)
    • Try
      • Q(B);
      • Threat
        • S(H)
      • Vars
        • R(e);XQ(B)::S(A),XR(e)
        • S(f);P_PINP(I),SBLOCK,XS(H)::B(F)
      • Refutation
        • S(f);P_PINP(I)
  • Actual
    • Q(B);
    • Threat
      • QAB1(B)
    • Vars
      • B(b);XQ(B)::S(A),XB(b)
      • S(f);XS(A)::S(H)
      • S(f);XP(C)::S(H)
      • S(f);XB(F)::S(H)
      • S(f);OGATE,XS(H)::B(F),XS(f)
      • S(f);::S(H)
      • S(f);N_GUARD,S_CUTB(c)::P=Q
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