MESON Chess Problem Database

Problem Display
PID: 201929 (8/8/8/8/8/4b3/3NR2p/R3K2k w Q - 0 1)

Kuzmichev, Vladimir Viktorovich

Problemskak, 2014

8/8/8/8/8/4b3/3NR2p/R3K2k

#2

4 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...Kg1
      • 2.0-0-0#
    • 1...Bxd2+
      • 2.Kxd2#
    • 1...Bf2+
      • 2.Kxf2#
    • 1...Bf4
      • 2.Kf2#
      • 2.0-0-0#
    • 1...Bg5
      • 2.Kf2#
      • 2.0-0-0#
    • 1...Bh6
      • 2.Kf2#
      • 2.0-0-0#
  • Tries
    • 1.Rxh2+?
      • 1...Kg1
        • 2.Sf3#
      • 1...Kxh2!
  • Keys
    • 1.Rf2!
      • threat
        • 2.Ke2#
        • 2.0-0-0#
      • 1...Bxd2+
        • 2.Kxd2#
      • 1...Bxf2+
        • 2.Kxf2#
      • 1...Kg1
        • 2.Ke2#
      • 1...Bd4
        • 2.0-0-0#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(a);P-FLIGHT::0-0-0
    • B(c);CHECK,XS(C)::R(A)+K(B),XB(c)
    • B(c);CHECK::R(A)+K(B),XB(c)
  • Tries
    • Try
      • R(D);CHECK,XP(b)
      • Vars
        • K(a);P-FLIGHT::S(C)
      • Refutation
        • K(a);P-FLIGHT,XR(D)
  • Actual
    • R(D);
    • Threat
      • DUALS(2)
    • Vars
      • B(c);CHECK,XS(C)::R(A)+K(B),XB(c)
      • B(c);CHECK,XR(D)::R(A)+K(B),XB(c)
      • K(a);P-FLIGHT::R(A)+K(B)
      • B(c);::0-0-0
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