MESON Chess Problem Database

Problem Display
PID: 161537 (8/7Q/8/B7/6Nb/8/2PPR3/1K1k1b2 w - - 0 1)

Antonov, Yuri Mikhailovich

Probleemblad, 1986

8/7Q/8/B7/6Nb/8/2PPR3/1K1k1b2

#2

7 + 3

15148 Sadier Collection 2017

SOLUTION

  • SOUND
  • Tries
    • 1.Qd3?
      • threat
        • 2.Se3#
      • 1...Bf2
        • 2.Sxf2#
      • 1...Bg5
        • 2.Sf2#
      • 1...Bxe2!
    • 1.Qxh4?
      • threat
        • 2.Re1#
        • 2.Qe1#
      • 1...Bxe2
        • 2.Se3#
      • 1...Kxe2!
  • Keys
    • 1.d4!
      • threat
        • 2.Qd3#
      • 1...Kxe2
        • 2.Qd3#
      • 1...Bxe2
        • 2.Se3#
      • 1...Be1
        • 2.Rxe1#
      • 1...Bg5
        • 2.Re1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(G);
      • Threat
        • S(E)
      • Vars
        • B(c);N_GUARD::S(E),XB(c)
        • B(c);N_GUARD::S(E)
      • Refutation
        • B(b);XR(D)
    • Try
      • Q(G);XB(c)
      • Threat
        • DUALS(2)
      • Vars
        • B(b);SBLOCK,XR(D)::S(E)
      • Refutation
        • K(a);S_FLIGHT,XR(D)
  • Actual
    • P(C);
    • Threat
      • QAR2(G)
    • Vars
      • K(a);S_FLIGHT,XR(D)::QAB1(G)
      • B(b);SBLOCK,XR(D)::S(E)
      • B(c);N_GUARD::R1(D),XB(c)
      • B(c);N_GUARD::R1(D)
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