MESON Chess Problem Database

Problem Display
PID: 201370 (4B1b1/1R6/8/1R6/1B5q/1k4r1/1N6/K3N3 w - - 0 1)

Belli, Nicolo

L'Alfiere di Re, 1922

4B1b1/1R6/8/1R6/1B5q/1k4r1/1N6/K3N3

#2

7 + 4

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Bd2+?
      • 1...Ka3
        • 2.Sc2#
      • 1...Qb4!
    • 1.Ba5+?
      • 1...Ka3
        • 2.Sc2#
      • 1...Qb4!
  • Keys
    • 1.Rg5!
      • threat
        • 2.Ba4#
      • 1...Qxb4
        • 2.Rxg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(D);CHECK
      • Vars
        • K(a);P-FLIGHT::S(B)
      • Refutation
        • Q(c);P_SPINQ(c)
    • Try
      • B(D);CHECK
      • Vars
        • K(a);P-FLIGHT::S(B)
      • Refutation
        • Q(c);P_SPINQ(c)
  • Actual
    • R(E);
    • Threat
      • B(G)
    • Vars
      • Q(c);N_GUARD,P_SPINQ(c),XB(D)::R(E),XR(b)
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