MESON Chess Problem Database

Problem Display
PID: 78879 (7Q/2Npbp2/1P2p3/4B3/1r2k2p/5R2/1R2P3/4K3 w - - 0 1)

Legentil, Georges

Normandie, 1947

7Q/2Npbp2/1P2p3/4B3/1r2k2p/5R2/1R2P3/4K3

#2

8 + 7

5454 Near Snap 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Bg5
      • 2.Rxb4#
    • 1...Bd8
      • 2.Rxb4#
    • 1...d6
      • 2.Rxb4#
  • Tries
    • 1.Bf6?
      • threat
        • 2.Qxh4#
        • 2.Qh7#
      • 1...e5
        • 2.Qxh4#
      • 1...Rb5
        • 2.Qxh4#
      • 1...Bd6
        • 2.Qh7#
        • 2.Qa8#
      • 1...h3
        • 2.Qh4#
        • 2.Qh7#
      • 1...Bxf6!
    • 1.Rbb3?
      • threat
        • 2.Rbe3#
        • 2.Rf4#
      • 1...Bf6
        • 2.Rbe3#
      • 1...f6
        • 2.Rbe3#
      • 1...Bc5
        • 2.Rf4#
      • 1...Bg5
        • 2.Rxb4#
      • 1...Rxb3!
  • Keys
    • 1.Bc3!
      • threat
        • 2.Qe5#
      • 1...Rd4
        • 2.Qxd4#
      • 1...Rb5
        • 2.Qd4#
      • 1...Bd6
        • 2.Qa8#
      • 1...Bf6
        • 2.Qh7#
      • 1...e5
        • 2.Qxe5#
      • 1...d6
        • 2.Rxb4#
      • 1...f6
        • 2.Qxh4#

Anticipated by 193988(1916)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 2
  • Sets
    • B(f);N_GUARD::R(B),XR(a)
    • P(e);S_CUTB(f)::R(B),XR(a)
  • Tries
    • Try
      • B(E);
      • Threat
        • DUALS(2)
      • Vars
        • P(d);::QAR(H),XP(c)
        • R(a);::QAR(H),XP(c)
      • Refutation
        • B(f);XB(E)
    • Try
      • R(B);
      • Threat
        • DUALS(2)
      • Vars
        • B(f);::R1(B)
        • P(g);::R1(B)
        • B(f);::R1(D)
        • B(f);N_GUARD::R(B),XR(a)
      • Refutation
        • R(a);XR(B)
  • Actual
    • B(E);
    • Threat
      • QAR1(H)
    • Vars
      • R(a);N_GUARD::QAR1(H),XR(a)
      • R(a);N_GUARD::QAR1(H)
      • B(f);S_CUTP(e)::QAB(H)
      • B(f);S_CUTP(g)::QAB(H)
      • P(d);::QAR1(H),XP(d)
      • P(e);S_CUTB(f)::R(B),XR(a)
      • P(g);S_CUTB(f)::QAR(H),XP(c)
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