MESON Chess Problem Database

Problem Display
PID: 60015 (1Kb5/8/4R3/1kN1BRr1/pPn1Q2q/prp5/2n5/5B2 w - - 0 1)

Touw Hian Bwee

3rd Place, Match: Indonesia - Netherlands, 1970

1Kb5/8/4R3/1kN1BRr1/pPn1Q2q/prp5/2n5/5B2

#2

8 + 10

3751 FIDE Album (1968-1970) 1977
6352 A Collection of Chess Problems by Touw Hian Bwee 2008

SOLUTION

  • SOUND
  • Sets
    • 1...Qe1
      • 2.Qxc4#
    • 1...Qf2
      • 2.Qxc4#
    • 1...Qg3
      • 2.Qxc4#
    • 1...Qh1
      • 2.Qxc4#
    • 1...Qh2
      • 2.Qxc4#
    • 1...Qh3
      • 2.Qxc4#
    • 1...Qh5
      • 2.Qxc4#
    • 1...Qh6
      • 2.Qxc4#
    • 1...Qh7
      • 2.Qxc4#
    • 1...Qh8
      • 2.Qxc4#
    • 1...Bxe6
      • 2.Qb7#
    • 1...Bb7
      • 2.Qxb7#
    • 1...Bd7
      • 2.Qb7#
  • Tries
    • 1.Sd7?
      • threat
        • 2.Rb6#
      • 1...Kxb4
        • 2.Bd6#
      • 1...Rxb4
        • 2.Qd5#
      • 1...Bxd7
        • 2.Qb7#
      • 1...Qf2
        • 2.Qxc4#
      • 1...Qh6
        • 2.Qxc4#
      • 1...Rg6
        • 2.Bxc3#
      • 1...Sxb4!
  • Keys
    • 1.Bc7!
      • threat
        • 2.Rb6#
      • 1...Kxb4
        • 2.Sd3#
      • 1...Rxb4
        • 2.Qc6#
      • 1...Bxe6
        • 2.Qb7#
      • 1...Sxb4
        • 2.Bxc4#
      • 1...Qh6
        • 2.Qxc4#
      • 1...Rg6
        • 2.Sa6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 11
  • Sets
    • Q(g);N_GUARD::QAB1(C),XS(f)
    • Q(g);N_GUARD,P_PINB(E)::QAB1(C),XS(f)
    • B(j);N_GUARD,XR(G)::QAR2(C)
    • B(j);N_GUARD::QAR2(C),XB(j)
    • B(j);N_GUARD::QAR2(C)
  • Tries
    • Try
      • S(D);
      • Threat
        • R1(G)
      • Vars
        • K(h);P-FLIGHT,XP(B)::B(E)
        • R(c);SBLOCK,XP(B)::QAR2(C)
        • B(j);N_GUARD,XS(D)::QAR2(C)
        • Q(g);N_GUARD::QAB1(C),XS(f)
        • R(i);N_GUARD::R(F)+B(E),XP(d)
      • Refutation
        • S(a);XP(B)
  • Actual
    • B(E);
    • Threat
      • R1(G)
    • Vars
      • K(h);P-FLIGHT,XP(B)::S(D)
      • R(c);SBLOCK,XP(B)::QAB1(C)
      • B(j);N_GUARD,XR(G)::QAR2(C)
      • S(a);SBLOCK,XP(B)::B(A),XS(f)
      • Q(g);N_GUARD::QAB1(C),XS(f)
      • R(i);N_GUARD::R(F)+S(D)
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