MESON Chess Problem Database

Problem Display
PID: 58646 (1BR5/8/N3N3/2pkpB1K/2r4p/1P3nQ1/3PP2n/b2b2q1 w - - 0 1)

Michel, Francois

Het Belgisch Schaakbord (L'Echiquier Belge), 1955

1BR5/8/N3N3/2pkpB1K/2r4p/1P3nQ1/3PP2n/b2b2q1

#2

10 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Rc1
      • 2.e4#
    • 1...Rc2
      • 2.e4#
    • 1...Rc3
      • 2.e4#
    • 1...Rd4
      • 2.Rxc5#
    • 1...Bd4
      • 2.e4#
    • 1...Sd4
      • 2.Qxe5#
    • 1...e4
      • 2.Qd6#
  • Tries
    • 1.Sb4+?
      • 1...cxb4
        • 2.bxc4#
      • 1...Rxb4!
    • 1.Rxc5+?
      • 1...Rxc5
        • 2.Sb4#
      • 1...Qxc5!
  • Keys
    • 1.Sd4!
      • threat
        • 2.Rd8#
      • 1...Kxd4
        • 2.Rd8#
      • 1...Qxd4
        • 2.Qg8#
      • 1...Rxd4
        • 2.Rxc5#
      • 1...Bxd4
        • 2.e4#
      • 1...Sxd4
        • 2.Qxe5#
      • 1...cxd4
        • 2.bxc4#
      • 1...exd4
        • 2.Qd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 4
  • Sets
    • R(f);N_GUARD::P(B)
    • R(f);N_GUARD,S_CUTQ(c)::R1(J),XP(h)
    • B(a);S_CUTR(f)::P(B)
    • S(e);N_GUARD,P_PINP(B),S_CUTB(a)::QAR1(D),XP(j)
    • P(j);OGATE::QAR1(D)
  • Tries
    • Try
      • S(G);CHECK
      • Vars
        • P(h);XS(G)::P(C),XR(f)
      • Refutation
        • R(f);XS(G)
    • Try
      • R(J);CHECK,XP(h)
      • Vars
        • R(f);XR(J)::S(G)
      • Refutation
        • Q(c);XR(J)
  • Actual
    • S(H);
    • Threat
      • R(J)
    • Vars
      • K(i);P-FLIGHT,XS(H)::R(J)
      • Q(c);N_GUARD,SBLOCK,XS(H)::QAB(D)
      • R(f);N_GUARD,SBLOCK,XS(H)::R1(J),XP(h)
      • B(a);SBLOCK,XS(H)::P(B)
      • S(e);N_GUARD,P_PINP(B),XS(H)::QAR1(D),XP(j)
      • P(h);SBLOCK,XS(H)::P(C),XR(f)
      • P(j);OGATE,SBLOCK,XS(H)::QAR1(D)
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