MESON Chess Problem Database

Problem Display
PID: 170925 (QB2N3/1pr4p/1RP1p3/nB1kbn2/1P6/p3R2K/b1P1N3/8 w - - 0 1)

Buchwald, Julius

Problemisten, 1947

QB2N3/1pr4p/1RP1p3/nB1kbn2/1P6/p3R2K/b1P1N3/8

#2

11 + 10

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Rxc6
      • 2.Rxe5#
    • 1...Rd7
      • 2.Rxe5#
    • 1...Re7
      • 2.Rxe5#
    • 1...Rf7
      • 2.Rxe5#
    • 1...Rg7
      • 2.Rxe5#
    • 1...Rc8
      • 2.Rxe5#
    • 1...Bd4
      • 2.Sf4#
    • 1...Bd6
      • 2.Sf6#
    • 1...Sb3
      • 2.c4#
    • 1...Sd4
      • 2.Sc3#
    • 1...Sd6
      • 2.Sxc7#
  • Tries
    • 1.Sc3+?
      • 1...Kd4
        • 2.Rd3#
      • 1...Bxc3!
  • Keys
    • 1.Bd3!
      • threat
        • 2.Qxa5#
      • 1...Rxc6
        • 2.Rxe5#
      • 1...Sxc6
        • 2.Rb5#
      • 1...bxc6
        • 2.Rb5#
      • 1...Bc4
        • 2.Be4#
      • 1...Bd4
        • 2.Sf4#
      • 1...Bd6
        • 2.Sf6#
      • 1...Sb3
        • 2.c4#
      • 1...Sc4
        • 2.Be4#
      • 1...Sd4
        • 2.Sc3#
      • 1...Sd6
        • 2.Sxc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 5
  • Sets
    • R(i);XP(H)::R1(C),XB(e)
    • R(i);::R1(C),XB(e)
    • B(e);N_GUARD,SBLOCK::S(B)
    • B(e);N_GUARD,SBLOCK::S(K)
    • S(c);N_GUARD,S_CUTB(a)::P(A)
    • S(f);SBLOCK,S_CUTB(e)::S(B)
    • S(f);SBLOCK,S_CUTB(e)::S(K),XR(i)
  • Tries
    • Try
      • S(B);CHECK
      • Vars
        • K(d);P-FLIGHT::R1(C)
      • Refutation
        • B(e);XS(B)
  • Actual
    • B(F);
    • Threat
      • QAR(I),XS(c)
    • Vars
      • R(i);XP(H)::R1(C),XB(e)
      • S(c);SBLOCK,XP(H)::R(G)
      • P(h);P_SPINP(h),XP(H)::R(G)
      • B(a);SBLOCK::B(F)
      • B(e);N_GUARD,SBLOCK::S(B)
      • B(e);N_GUARD,SBLOCK::S(K)
      • S(c);N_GUARD,S_CUTB(a)::P(A)
      • S(c);SBLOCK::B(F)
      • S(f);SBLOCK,S_CUTB(e)::S(B)
      • S(f);SBLOCK,S_CUTB(e)::S(K),XR(i)
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