MESON Chess Problem Database

Problem Display
PID: 2200 (2NBn3/bRPpPBp1/KPk2pP1/p1r1pP2/2P5/1R6/2N5/8 w - - 0 1)

Cook, Eugene Beauharnais

New York Musical World, 1859

(First published on Sat Dec 3 1859)

2NBn3/bRPpPBp1/KPk2pP1/p1r1pP2/2P5/1R6/2N5/8

#2

13 + 9

1679 American Chess Nuts 1868

SOLUTION

  • SOUND
  • Sets
    • 1...Bxb6
      • 2.R3xb6#
      • 2.R7xb6#
    • 1...Bb8
      • 2.cxb8S#
    • 1...Sd6
      • 2.Sxa7#
    • 1...Sxc7+
      • 2.Rxc7#
    • 1...a4
      • 2.Sb4#
    • 1...e4
      • 2.Sd4#
    • 1...d5
      • 2.Bxe8#
    • 1...d6
      • 2.Bxe8#
  • Tries
    • 1.Rb5?
      • 1...Sxc7+
        • 2.Rxc7#
      • 1...Rxc4
        • 2.Bd5#
      • 1...Bxb6
        • 2.R5xb6#
        • 2.R7xb6#
      • 1...d5
        • 2.Bxe8#
      • 1...d6
        • 2.Bxe8#
      • 1...Rd5
        • 2.Bxd5#
        • 2.cxd5#
      • 1...Bb8
        • 2.cxb8S#
      • 1...Sd6
        • 2.Sxa7#
      • 1...a4
        • 2.Sb4#
      • 1...e4
        • 2.Sd4#
      • 1...Rxb5!
  • Keys
    • 1.Rc3!
      • 1...Sxc7+
        • 2.Rxc7#
      • 1...Rxc4
        • 2.Rxc4#
      • 1...Bxb6
        • 2.Rxb6#
      • 1...Rb5
        • 2.cxb5#
      • 1...Rd5
        • 2.cxd5#
      • 1...d5
        • 2.Bxe8#
      • 1...d6
        • 2.Bxe8#
      • 1...Bb8
        • 2.cxb8S#
      • 1...Sd6
        • 2.Sxa7#
      • 1...a4
        • 2.Sb4#
      • 1...e4
        • 2.Sd4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • B(f);OGATE::PXB(f)=S
    • S(i);SBLOCK::S(L),XB(f)
    • S(i);CHECK,OGATE,XP(I)::R1(H),XS(i)
    • P(a);N_GUARD::S(A)
    • P(c);N_GUARD::S(A)
    • P(g);OGATEB::B(K),XS(i)
  • Tries
    • Try
      • R(B);
      • Vars
        • S(i);CHECK,OGATE,XP(I)::R1(H),XS(i)
        • R(b);N_GUARD,XP(C)::B(K)
        • P(g);OGATEB::B(K),XS(i)
        • B(f);OGATE::PXB(f)=S
        • S(i);SBLOCK::S(L),XB(f)
        • P(a);N_GUARD::S(A)
        • P(c);N_GUARD::S(A)
      • Refutation
        • R(b);XR(B)
  • Actual
    • R(B);
    • Vars
      • S(i);CHECK,OGATE,XP(I)::R1(H),XS(i)
      • R(b);OGATE,P_SPINR(b),XP(C)::R(B),XR(b)
      • B(f);OGATE,XP(F)::R1(H),XB(f)
      • R(b);OGATE::R(B)+P(C)DCHECK,XR(b)
      • P(g);OGATEB::B(K),XS(i)
      • B(f);OGATE::PXB(f)=S
      • S(i);SBLOCK::S(L),XB(f)
      • P(a);N_GUARD::S(A)
      • P(c);N_GUARD::S(A)
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