MESON Chess Problem Database

Problem Display
PID: 62531 (n7/QP3K2/2p3N1/1RPk1B2/1P6/1Pp1p1b1/2nPN1b1/1R6 w - - 0 1)

Bourd, Evgeny

Torre & Cavallo - Scacco!, 2002

n7/QP3K2/2p3N1/1RPk1B2/1P6/1Pp1p1b1/2nPN1b1/1R6

#2

12 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Be4
      • 2.Be6#
    • 1...Be5
      • 2.Se7#
    • 1...Sd4
      • 2.Sxc3#
    • 1...cxb5
      • 2.bxa8Q#
      • 2.bxa8B#
  • Tries
    • 1.dxc3?
      • threat
        • 2.c4#
      • 1...cxb5
        • 2.bxa8Q#
        • 2.bxa8B#
      • 1...Sa3
        • 2.Rd1#
      • 1...Sb6!
    • 1.dxe3?
      • threat
        • 2.Sxc3#
      • 1...cxb5
        • 2.bxa8Q#
        • 2.bxa8B#
      • 1...Be1
        • 2.Sef4#
      • 1...Be5
        • 2.Se7#
      • 1...Sxe3!
    • 1.d3?
      • threat
        • 2.Be6#
      • 1...cxb5
        • 2.bxa8Q#
        • 2.bxa8B#
      • 1...Bh3
        • 2.Be4#
      • 1...Sd4
        • 2.Sxc3#
      • 1...Sc7!
    • 1.d4?
      • threat
        • 2.Se7#
      • 1...Sxd4
        • 2.Sxc3#
      • 1...Bh4
        • 2.Sgf4#
      • 1...Bd6!
  • Keys
    • 1.bxa8S!
      • threat
        • 2.Sb6#
      • 1...cxb5
        • 2.Qb7#
      • 1...Bc7
        • 2.Sxc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • B(b);SBLOCK::B(H)
    • B(e);SBLOCK::S(I)
    • S(a);SBLOCK::S(C),XP(c)
    • P(g);XR(F)::PXS(h)=Q
  • Tries
    • Try
      • P(B);XP(c)
      • Threat
        • P(B)
      • Vars
        • P(g);XR(F)::PXS(h)=Q
        • S(a);N_GUARD::R(A)
      • Refutation
        • S(h);
    • Try
      • P(B);XP(d)
      • Threat
        • S(C),XP(c)
      • Vars
        • P(g);XR(F)::PXS(h)=Q
        • B(e);N_GUARD::S(C)
        • B(e);SBLOCK::S(I)
      • Refutation
        • S(a);XP(B)
    • Try
      • P(B);
      • Threat
        • B(H)
      • Vars
        • P(g);XR(F)::PXS(h)=Q
        • B(b);N_GUARD::B(H)
        • S(a);SBLOCK::S(C),XP(c)
      • Refutation
        • S(h);
    • Try
      • P(B);
      • Threat
        • S(I)
      • Vars
        • S(a);SBLOCK,XP(B)::S(C),XP(c)
        • B(e);N_GUARD::S(I)
      • Refutation
        • B(e);
  • Actual
    • P(K);XS(h)
    • Threat
      • S(K)
    • Vars
      • P(g);OGATEB,XR(F)::QAB(J)
      • B(e);N_GUARD::S(K),XB(e)
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