MESON Chess Problem Database

Problem Display
PID: 150250 (8/4pKp1/7b/2R1BN2/4k1B1/r7/4P3/5N2 w - - 0 1)

Agarkov, Anatoly Yakovlevich

Sachprofil, 1993

8/4pKp1/7b/2R1BN2/4k1B1/r7/4P3/5N2

#2

7 + 5

15148 Sadier Collection 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Ra1
      • 2.S1g3#
      • 2.S5g3#
    • 1...Ra2
      • 2.S1g3#
      • 2.S5g3#
    • 1...Re3
      • 2.Sd2#
    • 1...Rg3
      • 2.S1xg3#
      • 2.S5xg3#
    • 1...Ra4
      • 2.S1g3#
      • 2.S5g3#
    • 1...Ra5
      • 2.S1g3#
      • 2.S5g3#
    • 1...Ra6
      • 2.S1g3#
      • 2.S5g3#
    • 1...Ra7
      • 2.S1g3#
      • 2.S5g3#
    • 1...Ra8
      • 2.S1g3#
      • 2.S5g3#
    • 1...Bd2
      • 2.Sxd2#
    • 1...Be3
      • 2.S1g3#
      • 2.S5g3#
    • 1...e6
      • 2.Sd6#
    • 1...g5
      • 2.Sd2#
  • Tries
    • 1.S1e3?
      • threat
        • 2.Bf3#
      • 1...Bxe3
        • 2.Sg3#
      • 1...Rxe3!
    • 1.Sxe7?
      • threat
        • 2.Bf5#
      • 1...Rf3+
        • 2.Bxf3#
      • 1...g6!
  • Keys
    • 1.S5e3!
      • threat
        • 2.Bf3#
        • 2.Bf5#
      • 1...Rxe3
        • 2.Sd2#
      • 1...Bxe3
        • 2.Sg3#
      • 1...e6
        • 2.Bf3#
      • 1...g6
        • 2.Bf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • R(a);S_CUTB(c)::S(A)
    • B(c);N_GUARD::S(A),XB(c)
    • P(d);N_GUARD::S(F)
    • P(e);S_CUTB(c)::S(A)
  • Tries
    • Try
      • S(A);
      • Threat
        • B(C)
      • Vars
        • B(c);SBLOCK,XS(A)::S(F)
      • Refutation
        • R(a);XS(A)
    • Try
      • S(F);XP(d)
      • Threat
        • B(C)
      • Vars
        • R(a);CHECK,N_GUARD::B(C),XR(a)
      • Refutation
        • P(e);
  • Actual
    • S(F);
    • Threat
      • DUALS(2)
    • Vars
      • R(a);SBLOCK,XS(F)::S(A)
      • B(c);SBLOCK,XS(F)::S(A)
      • P(d);::B(C)
      • P(e);::B(C)
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