MESON Chess Problem Database

Problem Display
PID: 106114 (3B4/3pp3/2pPP3/RNk2K2/p1PNppQ1/P7/5b2/2R5 w - - 0 1)

Burmistrov, Sergey Gennadevich

Thema Danicum, 1986

3B4/3pp3/2pPP3/RNk2K2/p1PNppQ1/P7/5b2/2R5

#2

11 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...dxe6+
      • 2.Sxe6#
  • Tries
    • 1.Ke5?
      • threat
        • 2.Sa7#
      • 1...Bxd4+
        • 2.Sxd4#
      • 1...exd6+
        • 2.Sxd6#
      • 1...cxb5
        • 2.Rxb5#
        • 2.cxb5#
      • 1...Be1!
    • 1.Sa7+?
      • 1...Kxd6
        • 2.Sc8#
        • 2.Qxf4#
      • 1...Kxd4!
    • 1.Ra6?
      • threat
        • 2.Bb6#
      • 1...dxe6+
        • 2.Sxe6#
      • 1...cxb5!
    • 1.Qxf4?
      • threat
        • 2.Qe5#
      • 1...dxe6+
        • 2.Sxe6#
      • 1...Bxd4
        • 2.Sa7#
      • 1...exd6
        • 2.Qxd6#
      • 1...Bg3!
  • Keys
    • 1.Qg7!
      • threat
        • 2.Qe5#
      • 1...dxe6+
        • 2.Sxe6#
      • 1...Bxd4
        • 2.Qxd4#
      • 1...exd6
        • 2.Sa7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(g);CHECK,XP(J)::S(D),XP(g)
  • Tries
    • Try
      • K(H);P-FLIGHT
      • Threat
        • R(F)+S(G)
      • Vars
        • B(a);CHECK,XS(D)::R(F)+S(G),XB(a)
        • P(h);CHECK,XP(I)::R(F)+S(G),XP(h)
      • Refutation
        • B(a);
    • Try
      • S(G);CHECK
      • Refutation
        • K(e);S_FLIGHT,XS(D)
    • Try
      • R(F);
      • Threat
        • B(K)
      • Vars
        • P(g);CHECK,XP(J)::S(D),XP(g)
      • Refutation
        • P(f);XS(G)
    • Try
      • Q(E);XP(d)
      • Threat
        • QAR2(E)
      • Vars
        • P(g);CHECK,XP(J)::S(D),XP(g)
        • B(a);SBLOCK,XS(D)::R(F)+S(G)
        • P(h);OGATE,XP(I)::QAB1(E),XP(h)
      • Refutation
        • B(a);
  • Actual
    • Q(E);
    • Threat
      • QAR2(E)
    • Vars
      • P(g);CHECK,XP(J)::S(D),XP(g)
      • B(a);OGATE,XS(D)::QAB1(E),XB(a)
      • P(h);SBLOCK,XP(I)::R(F)+S(G)
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