MESON Chess Problem Database

Problem Display
PID: 2541 (3k4/7R/3N4/3p4/K2P4/6P1/3bp3/2B3Q1 w - - 0 1)

Marache, Napoleon

Source?, 0000

3k4/7R/3N4/3p4/K2P4/6P1/3bp3/2B3Q1

#2

7 + 4

1679 American Chess Nuts 1868

SOLUTION

  • SOUND
  • Sets
    • 1...Be1
      • 2.Bg5#
    • 1...Bc3
      • 2.Bg5#
    • 1...Bb4
      • 2.Bg5#
    • 1...Ba5
      • 2.Bg5#
    • 1...Bg5
      • 2.Bxg5#
  • Tries
    • 1.Bxd2?
      • threat
        • 2.Ba5#
        • 2.Bg5#
      • 1...e1B
        • 2.Bg5#
      • 1...e1R
        • 2.Ba5#
      • 1...e1Q!
  • Keys
    • 1.Qe1!
      • 1...Bxc1
        • 2.Qa5#
      • 1...Bxe1
        • 2.Bg5#
      • 1...Bc3
        • 2.Bg5#
      • 1...Be3
        • 2.Qa5#
      • 1...Bb4
        • 2.Bg5#
      • 1...Bf4
        • 2.Qa5#
      • 1...Ba5
        • 2.Bg5#
        • 2.Qxa5#
      • 1...Bg5
        • 2.Bxg5#
        • 2.Qa5#
      • 1...Bh6
        • 2.Qa5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 2
  • Sets
    • B(a);OGATE::B(A)
    • B(a);OGATE::B(A),XB(a)
  • Tries
    • Try
      • B(A);XB(a)
      • Threat
        • DUALS(2)
      • Vars
        • P(b);::B(A)
      • Refutation
        • P(b);
  • Actual
    • Q(B);
    • Vars
      • B(a);OGATE,XB(A)::QAB(B)
      • B(a);OGATE,XQ(B)::B(A)
      • B(a);OGATE::B(A)
      • B(a);OGATE::QAB(B)
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