MESON Chess Problem Database

Problem Display
PID: 110389 (8/K2B2p1/3R4/3N1Pr1/4k3/3N2p1/3Pp2q/8 w - - 0 1)

Valenta, O

Le Pragois, 1880

8/K2B2p1/3R4/3N1Pr1/4k3/3N2p1/3Pp2q/8

#2

7 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Se3?
      • threat
        • 2.Bc6#
      • 1...Kf3
        • 2.Bc6#
      • 1...Rxf5!
    • 1.Sf6+?
      • 1...Kf3
        • 2.Bc6#
      • 1...gxf6!
  • Keys
    • 1.Bc6!
      • threat
        • 2.Se3#
        • 2.Se7#
      • 1...Qg1+
        • 2.Se3#
      • 1...Qf2+
        • 2.Se3#
      • 1...Kxd3
        • 2.Se3#
      • 1...Kf3
        • 2.Se3#
        • 2.Sf6#
      • 1...Kd4
        • 2.Se3#
        • 2.Sb6#
      • 1...Kxf5
        • 2.Se3#
      • 1...Rxf5
        • 2.Sc3#
        • 2.Sf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);
      • Threat
        • B(G)
      • Vars
        • K(d);S_FLIGHT::B(G)
      • Refutation
        • R(e);XP(D)
    • Try
      • S(C);CHECK
      • Vars
        • K(d);S_FLIGHT::B(G)
      • Refutation
        • P(f);XS(C)
  • Actual
    • B(G);
    • Threat
      • DUALS(2)
    • Vars
      • Q(b);CHECK::B(G)+S(C)
      • K(d);S_FLIGHT,XS(B)::R(E)+S(C)
      • K(d);S_FLIGHT,XP(D)::S(C)
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