MESON Chess Problem Database

Problem Display
PID: 80201 (8/2K2R2/p3BPp1/2B1k1Np/r6r/3npQ2/2nR4/2q5 w - - 0 1)

Touw Hian Bwee

1st Prize, Postsjakk, 1962

8/2K2R2/p3BPp1/2B1k1Np/r6r/3npQ2/2nR4/2q5

#2

8 + 10

6352 A Collection of Chess Problems by Touw Hian Bwee 2008

SOLUTION

  • SOUND
  • Sets
    • 1...Raf4
      • 2.Qd5#
    • 1...Rhf4
      • 2.Qd5#
    • 1...Se1
      • 2.Bd6#
      • 2.Rd5#
    • 1...Sb2
      • 2.Bd6#
      • 2.Rd5#
    • 1...Sf2
      • 2.Bd6#
      • 2.Rd5#
    • 1...Sb4
      • 2.Bd6#
    • 1...Sf4
      • 2.Bd6#
    • 1...Sxc5
      • 2.Rd5#
  • Tries
    • 1.Bg4?
      • threat
        • 2.Re7#
      • 1...Sxc5
        • 2.Rd5#
      • 1...Re4
        • 2.Qxe4#
      • 1...Sd4
        • 2.Qe4#
      • 1...Sf4
        • 2.Bd6#
      • 1...Rf4!
    • 1.Qxe3+?
      • 1...Rae4
        • 2.Bd6#
      • 1...Rhe4
        • 2.Bd6#
      • 1...Sxe3!
  • Keys
    • 1.Bc4!
      • threat
        • 2.Re7#
      • 1...Sxc5
        • 2.Rd5#
      • 1...Rf4
        • 2.Qd5#
      • 1...Sf4
        • 2.Qe4#
      • 1...Sd4
        • 2.Bd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • R(e);SBLOCK::QAR1(B)
    • R(f);SBLOCK::QAR1(B)
    • S(c);::B(C)
    • S(c);OGATE,XB(C)::R1(A)
  • Tries
    • Try
      • B(E);
      • Threat
        • R(H)
      • Vars
        • S(c);OGATE,XB(C)::R1(A)
        • R(e);N_GUARD::QAR1(B),XR(e)
        • S(b);P_PINB(C),S_CUTR(e)::QAR1(B)
        • S(c);::B(C)
      • Refutation
        • R(e);
    • Try
      • Q(B);CHECK,XP(d)
      • Vars
        • R(e);P_SPINR(e)::B(C)
        • R(f);P_SPINR(f)::B(C)
      • Refutation
        • S(b);P_PINB(C),XQ(B)
  • Actual
    • B(E);
    • Threat
      • R(H)
    • Vars
      • S(c);OGATE,XB(C)::R1(A)
      • R(f);SBLOCK::QAR1(B)
      • S(c);S_CUTR(f)::QAR1(B)
      • S(b);SBLOCK::B(C)
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