MESON Chess Problem Database

Problem Display
PID: 107127 (2Q2b2/B6p/1rNp4/1pNk1KR1/1p1rn1Pp/1P2Pnp1/8/2R4B w - - 0 1)

Belliboni, Caetano

Xadrez Brasileiro, 1946

2Q2b2/B6p/1rNp4/1pNk1KR1/1p1rn1Pp/1P2Pnp1/8/2R4B

#2

11 + 12

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rd1
      • 2.Sxb4#
    • 1...Rd2
      • 2.Sxb4#
    • 1...Rd3
      • 2.Sxb4#
    • 1...Rxc6
      • 2.Qe6#
    • 1...Bh6
      • 2.Se7#
    • 1...Be7
      • 2.Sxe7#
    • 1...Bg7
      • 2.Se7#
    • 1...Se1
      • 2.Kf4#
    • 1...Sg1
      • 2.Kf4#
    • 1...Sfd2
      • 2.Kf4#
    • 1...Sh2
      • 2.Kf4#
    • 1...Sed2
      • 2.Kf6#
    • 1...Sf2
      • 2.Kf6#
    • 1...Sc3
      • 2.Kf6#
    • 1...Sf6
      • 2.Kxf6#
    • 1...dxc5
      • 2.Qe6#
  • Tries
    • 1.Bxf3?
      • threat
        • 2.Kf4#
      • 1...dxc5
        • 2.Qe6#
      • 1...Bh6
        • 2.Se7#
      • 1...Be7
        • 2.Sxe7#
      • 1...Bg7
        • 2.Se7#
      • 1...h6!
  • Keys
    • 1.Rd1!
      • threat
        • 2.Sxb4#
      • 1...Kxc5
        • 2.Se7#
      • 1...Rxc6
        • 2.Qe6#
      • 1...dxc5
        • 2.Qe6#
      • 1...Sfd2
        • 2.Kf4#
      • 1...Sed2
        • 2.Kf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 12
  • Sets
    • R(d);N_GUARD::S(I),XP(c)
    • R(i);SBLOCK,XS(I)::QAB1(K)
    • B(l);N_GUARD::S(I)
    • B(l);N_GUARD::S(I),XB(l)
    • S(a);N_GUARD,P_SPINS(e)::R(H)+K(G)
    • S(e);P_SPINS(a)::R(H)+K(G)
    • S(e);P_SPINS(a)::R(H)+K(G),XS(e)
    • P(j);XS(F)::QAB1(K)
  • Tries
    • Try
      • B(B);P_PINS(e),XS(a)
      • Threat
        • R(H)+K(G)
      • Vars
        • P(j);XS(F)::QAB1(K)
        • B(l);N_GUARD::S(I)
        • B(l);N_GUARD::S(I),XB(l)
      • Refutation
        • P(k);
  • Actual
    • R(A);P_PINR(d)
    • Threat
      • S(I),XP(c)
    • Vars
      • K(h);N_SPINR(d),P-FLIGHT,P_SPINR(i),XS(F)::QAR(K)+S(I)
      • R(i);SBLOCK,XS(I)::QAB1(K)
      • P(j);SBLOCK,XS(F)::QAB1(K)
      • S(a);N_GUARD,N_SPINR(d),P_SPINS(e)::R(H)+K(G)
      • S(e);N_SPINR(d),P_SPINS(a)::R(H)+K(G)
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