MESON Chess Problem Database

Problem Display
PID: 107899 (1n1r1B2/r7/2P4N/R2pkPP1/Npp3P1/2qBK3/1Qb5/8 w - - 0 1)

Chatillon, Octave H

La Presse, 1898

1n1r1B2/r7/2P4N/R2pkPP1/Npp3P1/2qBK3/1Qb5/8

#2

11 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qd4+
      • 2.Qxd4#
    • 1...Rxa5
      • 2.Sf7#
    • 1...Ra6
      • 2.Sf7#
    • 1...Rf7
      • 2.Sxf7#
    • 1...Ra8
      • 2.Sf7#
    • 1...Bb1
      • 2.Qh2#
    • 1...Bd1
      • 2.Qh2#
    • 1...Bb3
      • 2.Qh2#
    • 1...Bxd3
      • 2.Qh2#
    • 1...Bxa4
      • 2.Qh2#
    • 1...Sd7
      • 2.Sf7#
    • 1...b3
      • 2.Qxc3#
  • Keys
    • 1.Sb6!
      • threat
        • 2.Sxc4#
      • 1...Qd4+
        • 2.Qxd4#
      • 1...Rxa5
        • 2.Sf7#
      • 1...Bxd3
        • 2.Qh2#
      • 1...cxd3
        • 2.Sc4#
      • 1...Bb3
        • 2.Qh2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 8
  • Sets
    • Q(b);CHECK,N_PINB(B),OGATE::QAB1(A),XQ(b)
    • R(g);N_GUARD,N_SPINP(e),XR(F)::S(J)
    • R(g);N_GUARD::S(J)
    • R(g);N_GUARD::S(J),XR(g)
    • B(a);OGATE::QAB(A)
    • B(a);OGATE,XB(B)::QAB(A)
    • B(a);OGATE,XS(D)::QAB(A)
    • S(h);S_CUTR(g)::S(J)
    • P(c);N_GUARD::QAB(A),XQ(b)
  • Actual
    • S(D);
    • Threat
      • S(D),XP(d)
    • Vars
      • Q(b);CHECK,N_PINB(B),OGATE::QAB1(A),XQ(b)
      • R(g);N_GUARD,N_SPINP(e),XR(F)::S(J)
      • B(a);OGATE,XB(B)::QAB(A)
      • P(d);XB(B)::S(D)
      • B(a);OGATE::QAB(A)
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Developed and maintained by Brian Stephenson.
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