MESON Chess Problem Database

Problem Display
PID: 255000 (2B5/5N2/1K1pR1b1/Np1k1p2/p2p4/3rpp2/4Rb2/5Q2 w - - 0 1)

Burmistrov, Sergey Gennadevich

Probleemblad, 1984

2B5/5N2/1K1pR1b1/Np1k1p2/p2p4/3rpp2/4Rb2/5Q2

#2

7 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Be1
      • 2.Qxf3#
    • 1...Bg1
      • 2.Qxf3#
    • 1...Bg3
      • 2.Qxf3#
    • 1...Bh4
      • 2.Qxf3#
    • 1...fxe2
      • 2.Qg2#
      • 2.Qh1#
  • Tries
    • 1.Qh3?
      • threat
        • 2.Qxf3#
      • 1...fxe2
        • 2.Qg2#
        • 2.Qh1#
        • 2.Qf3#
      • 1...Bh5
        • 2.Qxf5#
      • 1...f4
        • 2.Bb7#
      • 1...Bg3!
    • 1.Qb1?
      • threat
        • 2.Qxb5#
      • 1...Rc3
        • 2.Rxd6#
      • 1...Rb3
        • 2.Rxd6#
      • 1...b4!
  • Keys
    • 1.R2xe3!
      • threat
        • 2.Bb7#
        • 2.Rxd6#
      • 1...Rxe3
        • 2.Qxb5#
      • 1...Bxe3
        • 2.Qxf3#
      • 1...Bxf7
        • 2.Bb7#
      • 1...dxe3
        • 2.Qxd3#
      • 1...Rc3
        • 2.Rxd6#
      • 1...Bg3
        • 2.Bb7#
        • 2.Qxf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 4
  • Sets
    • B(a);OGATE::QAB(A),XP(d)
  • Tries
    • Try
      • Q(A);
      • Threat
        • QAB(A),XP(d)
      • Vars
        • B(k);N_GUARD::QAR2(A),XP(i)
        • P(i);::B(G)
      • Refutation
        • B(a);
    • Try
      • Q(A);
      • Threat
        • QAR2(A),XP(g)
      • Vars
        • R(b);::R1(E),XP(j)
      • Refutation
        • P(g);
  • Actual
    • R(B);XP(c)
    • Threat
      • DUALS(2)
    • Vars
      • R(b);OGATE,XR(B)::QAR2(A),XP(g)
      • B(a);OGATE,XR(B)::QAB(A),XP(d)
      • B(k);XS(F)::B(G)
      • P(f);OGATEB,XR(B)::QAR2(A),XR(b)
      • R(b);::R1(E),XP(j)
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