MESON Chess Problem Database

Problem Display
PID: 46904 (7R/N3bK2/N1PkP3/3n4/1P2Q3/2p5/8/8 w - - 0 1)

Popa, Nicolae

Buletin Problemistic, 2000

7R/N3bK2/N1PkP3/3n4/1P2Q3/2p5/8/8

#2

8 + 4

102 Probleemblad 2000
5454 Near Snap 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Bd8
      • 2.Rxd8#
    • 1...Se3
      • 2.Sb5#
      • 2.Sc8#
    • 1...Sxb4
      • 2.Sb5#
      • 2.Sc8#
    • 1...Sf4
      • 2.Sb5#
      • 2.Sc8#
    • 1...Sb6
      • 2.Sb5#
    • 1...Sf6
      • 2.Sb5#
      • 2.Sc8#
    • 1...Sc7
      • 2.Sc8#
  • Tries
    • 1.Rh5?
      • threat
        • 2.Rxd5#
        • 2.Qxd5#
        • 2.Qe5#
      • 1...Sxb4
        • 2.Sb5#
        • 2.Sc8#
        • 2.Qxb4#
        • 2.Qf4#
        • 2.Qe5#
      • 1...Bf6
        • 2.Rxd5#
        • 2.Qxd5#
      • 1...Se3
        • 2.Sb5#
        • 2.Sc8#
        • 2.Qf4#
        • 2.Qe5#
      • 1...Sf4
        • 2.Sb5#
        • 2.Sc8#
        • 2.Qxf4#
        • 2.Qe5#
      • 1...Sb6
        • 2.Sb5#
        • 2.Qf4#
        • 2.Qe5#
      • 1...Sf6
        • 2.Sb5#
        • 2.Sc8#
        • 2.Qf4#
        • 2.Qe5#
      • 1...Sc7
        • 2.Sc8#
        • 2.Qf4#
        • 2.Qe5#
      • 1...Bg5!
  • Keys
    • 1.c7!
      • threat
        • 2.c8S#
      • 1...Sxc7
        • 2.Sc8#
      • 1...Sb6
        • 2.Sb5#

This anticipates 179177(2014)

There are these versions: 89055

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 1
  • Sets
    • B(d);N_GUARD::R(H),XB(d)
    • S(b);::S(F)
  • Tries
    • Try
      • R(H);
      • Threat
        • DUALS(3)
      • Refutation
        • B(d);
  • Actual
    • P(D);
    • Threat
      • P=S
    • Vars
      • S(b);XP(D)::S(F)
      • S(b);::S(F)
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