MESON Chess Problem Database

Problem Display
PID: 110109 (2n5/pp1P3B/P1PpPp1r/3k1N2/3P1pP1/6N1/P2K2P1/2Q1R3 w - - 0 1)

Kopaev, Viacheslav Georgievich

Thema Danicum, 1991

2n5/pp1P3B/P1PpPp1r/3k1N2/3P1pP1/6N1/P2K2P1/2Q1R3

#2

14 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Kd3?
      • threat
        • 2.Qc4#
      • 1...Sb6
        • 2.Se7#
      • 1...b5!
    • 1.Sh5?
      • threat
        • 2.Sxf4#
      • 1...f3
        • 2.Sf4#
      • 1...Rxh5!
    • 1.Sxd6?
      • threat
        • 2.Qc5#
      • 1...Kxd4
        • 2.Qc4#
      • 1...Kxd6
        • 2.d8Q#
      • 1...b6!
    • 1.Se7+?
      • 1...Kxd4
        • 2.Sgf5#
        • 2.Re4#
        • 2.Qc3#
      • 1...Sxe7!
    • 1.Qb2?
      • threat
        • 2.Qb5#
      • 1...Kc4
        • 2.Qb3#
      • 1...Kxc6
        • 2.Qxb7#
      • 1...bxc6
        • 2.Qb3#
      • 1...b5
        • 2.Qxb5#
      • 1...bxa6!
    • 1.Qb1?
      • threat
        • 2.Qb5#
      • 1...Kc4
        • 2.Qb3#
      • 1...Kxc6
        • 2.Qxb7#
      • 1...bxc6
        • 2.Qb3#
      • 1...b5
        • 2.Qxb5#
      • 1...bxa6!
  • Keys
    • 1.Se2!
      • threat
        • 2.Sxf4#
      • 1...Ke4
        • 2.Sc3#
      • 1...Kxe6
        • 2.Bg8#
      • 1...f3
        • 2.Sf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(D);P-FLIGHT
      • Threat
        • QAB1(A)
      • Vars
        • S(h);N_GUARD::S(I)
      • Refutation
        • P(g);
    • Try
      • S(F);
      • Threat
        • S(F),XP(a)
      • Vars
        • P(a);::S(F)
      • Refutation
        • R(e);XS(F)
    • Try
      • S(I);XP(c)
      • Threat
        • QAR1(A)
      • Vars
        • K(b);P-FLIGHT,XP(G)::QAR1(A)
        • K(b);P-FLIGHT,XS(I)::P=Q
      • Refutation
        • P(g);
    • Try
      • S(I);CHECK
      • Refutation
        • S(h);XS(I)
    • Try
      • Q(A);
      • Threat
        • QAR2(A)
      • Vars
        • K(b);S_FLIGHT::QAB1(A)
        • K(b);OGATEB,S_FLIGHT,XP(K)::QAB1(A),XP(g)
        • P(g);SBLOCK,XP(K)::QAB(A)
        • P(g);::QAR2(A),XP(g)
      • Refutation
        • P(g);XP(J)
    • Try
      • Q(A);
      • Threat
        • QAR2(A)
      • Vars
        • K(b);S_FLIGHT::QAB1(A)
        • K(b);OGATEB,S_FLIGHT,XP(K)::QAB1(A),XP(g)
        • P(g);SBLOCK,XP(K)::QAB(A)
        • P(g);::QAR2(A),XP(g)
      • Refutation
        • P(g);XP(J)
  • Actual
    • S(F);
    • Threat
      • S(F),XP(a)
    • Vars
      • K(b);S_FLIGHT::R(B)+S(F),DCHECK
      • K(b);OGATEB,S_FLIGHT,XP(L)::B(N)
      • P(a);::S(F)
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