MESON Chess Problem Database

Problem Display
PID: 62769 (3nb3/3N4/R2r1b2/1p1kp3/1R1p3p/2PN3B/3P1K2/2r1Q3 w - - 0 1)

Cornejo, Jose Jesus

Het Belgisch Schaakbord (L'Echiquier Belge), 1956

3nb3/3N4/R2r1b2/1p1kp3/1R1p3p/2PN3B/3P1K2/2r1Q3

#2

9 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Bg5
      • 2.Qxe5#
    • 1...Be7
      • 2.Qxe5#
    • 1...Sc6
      • 2.Sb6#
    • 1...Se6
      • 2.Sxf6#
    • 1...dxc3
      • 2.Qe4#
    • 1...e4
      • 2.Sf4#
  • Tries
    • 1.Bg2+?
      • 1...e4
        • 2.Sf4#
        • 2.Qxe4#
      • 1...Ke6!
    • 1.Qh1+?
      • 1...e4
        • 2.Sf4#
      • 1...Rxh1!
    • 1.c4+?
      • 1...bxc4
        • 2.Rb5#
      • 1...Rxc4!
  • Keys
    • 1.S7xe5!
      • threat
        • 2.Rxd4#
      • 1...Rxc3
        • 2.Qh1#
      • 1...Bxe5
        • 2.Qxe5#
      • 1...dxc3
        • 2.Qe4#
      • 1...Sc6
        • 2.Rxb5#
      • 1...Se6
        • 2.Bg2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • B(h);N_GUARD::QAR1(A),XP(f)
    • S(i);SBLOCK,S_CUTR(g)::S(I)
    • S(i);S_CUTR(g)::S(I),XB(h)
    • P(b);XP(D)::QAB1(A)
    • P(f);N_GUARD::S(E)
  • Tries
    • Try
      • B(F);CHECK
      • Refutation
        • K(e);P_SPINP(f),P_SPINR(g),S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • P(f);P_SPINP(f)::S(E)
      • Refutation
        • R(a);XQ(A)
    • Try
      • P(D);CHECK
      • Vars
        • P(d);SBLOCK,XP(D)::R(G)
      • Refutation
        • R(a);XP(D)
  • Actual
    • S(I);XP(f)
    • Threat
      • R1(G),XP(b)
    • Vars
      • R(a);N_GUARD,XP(D)::QAB(A)
      • B(h);OGATE,XS(I)::QAR1(A),XB(h)
      • P(b);XP(D)::QAB1(A)
      • S(i);S_CUTB(j)::R(G),XP(d)
      • S(i);SBLOCK::B(F)
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