MESON Chess Problem Database

Problem Display
PID: 15797 (1b2n3/p3Qb2/1p1p4/1BNkPP1R/2Rpp3/6p1/n5K1/6B1 w - - 0 1)

Burmistrov, Sergey Gennadevich

1st Prize, Volgogradskaya Pravda, 1987

1b2n3/p3Qb2/1p1p4/1BNkPP1R/2Rpp3/6p1/n5K1/6B1

#2

9 + 11

56 The Problemist 2001

SOLUTION

  • SOUND
  • Sets
    • 1...Bxh5
      • 2.Qe6#
    • 1...Be6
      • 2.Qxe6#
    • 1...Bg6
      • 2.Qe6#
    • 1...Sc7
      • 2.Qxd6#
  • Tries
    • 1.Sb3?
      • threat
        • 2.Rxd4#
      • 1...Be6
        • 2.Qxe6#
      • 1...d3
        • 2.Rd4#
      • 1...dxe5!
    • 1.Sxe4?
      • threat
        • 2.Rxd4#
      • 1...Kxe4
        • 2.Rxd4#
      • 1...dxe5
        • 2.Qb7#
      • 1...d3
        • 2.Rd4#
      • 1...Be6!
    • 1.Sb7?
      • threat
        • 2.Rxd4#
      • 1...dxe5
        • 2.Qxf7#
      • 1...Be6
        • 2.Qxe6#
      • 1...d3
        • 2.Rd4#
      • 1...e3!
    • 1.Bxd4?
      • threat
        • 2.Qb7#
        • 2.Qxf7#
      • 1...Bxh5
        • 2.Qe6#
        • 2.Qb7#
      • 1...Be6
        • 2.Qxe6#
        • 2.Qb7#
      • 1...Bg6
        • 2.Qe6#
        • 2.Qb7#
      • 1...Bg8
        • 2.Qb7#
      • 1...Bc7
        • 2.Qxf7#
      • 1...Sb4
        • 2.Qxf7#
      • 1...Sc7
        • 2.Qxd6#
      • 1...Sg7
        • 2.Qb7#
      • 1...dxe5!
  • Keys
    • 1.f6!
      • threat
        • 2.Qb7#
        • 2.Qxf7#
      • 1...Bxh5
        • 2.Qe6#
      • 1...bxc5
        • 2.Qxf7#
      • 1...dxc5
        • 2.Qxf7#
      • 1...dxe5
        • 2.Rxd4#
      • 1...Be6
        • 2.Qxe6#
        • 2.Qb7#
      • 1...Bg6
        • 2.Qe6#
        • 2.Qb7#
      • 1...Bg8
        • 2.Qb7#
        • 2.exd6#
        • 2.e6#
      • 1...Bc7
        • 2.Qxf7#
      • 1...Sb4
        • 2.Qxf7#
      • 1...Sc7
        • 2.Qxd6#
      • 1...Sg7
        • 2.Qb7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 2
  • Sets
    • B(i);N_GUARD,XR(H)::QAB1(I)
    • B(i);N_GUARD::QAB1(I),XB(i)
    • B(i);N_GUARD::QAB1(I)
    • S(k);N_GUARD,S_CUTB(j)::QAR1(I),XP(g)
  • Tries
    • Try
      • S(E);
      • Threat
        • R1(C),XP(c)
      • Vars
        • B(i);N_GUARD::QAB1(I),XB(i)
        • P(c);::R1(C)
      • Refutation
        • P(g);XP(F)
    • Try
      • S(E);XP(d)
      • Threat
        • R1(C),XP(c)
      • Vars
        • K(e);P_SPINP(c),S_FLIGHT,XS(E)::R1(C),XP(c)
        • P(g);SBLOCK,XP(F)::QAB(I)
        • P(c);::R1(C)
      • Refutation
        • B(i);
    • Try
      • S(E);
      • Threat
        • R1(C),XP(c)
      • Vars
        • P(g);SBLOCK,XP(F)::QAB(I),XB(i)
        • B(i);N_GUARD::QAB1(I),XB(i)
        • P(c);::R1(C)
      • Refutation
        • P(d);
    • Try
      • B(A);XP(c)
      • Threat
        • DUALS(2)
      • Vars
        • B(i);::QAB(I)
        • B(j);::QAB(I),XB(i)
        • S(a);::QAB(I),XB(i)
        • S(k);N_GUARD,S_CUTB(j)::QAR1(I),XP(g)
        • S(k);::QAB(I)
      • Refutation
        • P(g);XP(F)
  • Actual
    • P(G);
    • Threat
      • DUALS(2)
    • Vars
      • B(i);N_GUARD,XR(H)::QAB1(I)
      • P(f);XS(E)::QAB(I),XB(i)
      • P(g);XS(E)::QAB(I),XB(i)
      • P(g);P_SPINP(g),XP(F)::R1(C),XP(c)
      • B(j);::QAB(I),XB(i)
      • S(a);::QAB(I),XB(i)
      • S(k);N_GUARD,S_CUTB(j)::QAR1(I),XP(g)
      • S(k);::QAB(I)
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