MESON Chess Problem Database

Problem Display
PID: 120992 (1B6/8/2R4n/3P1p2/1N1PpP2/3pkP2/4N3/1K1R1Q2 w - - 0 1)

Amirov, Talip Khasanovich

Bogdanov, Evgeny Mikhailovich

The Problemist, 1983

1B6/8/2R4n/3P1p2/1N1PpP2/3pkP2/4N3/1K1R1Q2

#2

11 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...dxe2
      • 2.Sc2#
      • 2.Rc3#
    • 1...d2
      • 2.Rc3#
    • 1...exf3
      • 2.Re6#
  • Tries
    • 1.Sxd3?
      • threat
        • 2.Qf2#
      • 1...exd3
        • 2.Re6#
      • 1...exf3
        • 2.Re6#
      • 1...Sg4!
    • 1.Re6?
      • threat
        • 2.Rxd3#
      • 1...dxe2
        • 2.Sc2#
        • 2.Rd3#
      • 1...d2!
    • 1.Rxh6?
      • 1...dxe2
        • 2.Sc2#
      • 1...exf3
        • 2.Re6#
      • 1...d2!
    • 1.d6?
      • threat
        • 2.Sd5#
      • 1...d2
        • 2.Rc3#
      • 1...exf3!
  • Keys
    • 1.Sg3!
      • 1...Kxd4
        • 2.Ba7#
      • 1...exf3
        • 2.Rxd3#
      • 1...Sg4
        • 2.Sxf5#
      • 1...Sf7
        • 2.Sxf5#
      • 1...Sg8
        • 2.Sxf5#
      • 1...d2
        • 2.Sc2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 2
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • P(a);OGATEB::R(J)
    • P(c);OGATEB,XP(E)::R(J)
  • Tries
    • Try
      • S(F);XP(a)
      • Threat
        • QAB1(C)
      • Vars
        • P(c);OGATEB,XS(F)::R(J)
        • P(c);OGATEB,XP(E)::R(J)
      • Refutation
        • S(e);
    • Try
      • R(J);P_PINP(c)
      • Threat
        • R1(B),XP(a)
      • Refutation
        • P(a);
    • Try
      • R(J);XS(e)
      • Vars
        • P(a);N_GUARD,XS(D)::S(F)
        • P(c);OGATEB,XP(E)::R(J)
      • Refutation
        • P(a);
    • Try
      • P(I);
      • Threat
        • S(F)
      • Vars
        • P(a);OGATEB::R(J)
      • Refutation
        • P(c);XP(E)
  • Actual
    • S(D);
    • Vars
      • K(b);OGATEB,P_SPINP(a),S_FLIGHT,XP(G)::B(K)
      • P(c);N_GUARD,XP(E)::R1(B),XP(a)
      • S(e);N_GUARD::S(D),XP(d)
      • P(a);N_GUARD::S(F)
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