MESON Chess Problem Database

Problem Display
PID: 1028 (2B4b/8/2p3N1/8/p1k1ppK1/B1n4Q/n3N3/1R1R4 w - - 0 1)

Ulanov, Lev

The Problemist Supplement, 1996

2B4b/8/2p3N1/8/p1k1ppK1/B1n4Q/n3N3/1R1R4

#2

8 + 8

119 Tidskrift for Schack 2003

SOLUTION

  • SOUND
  • Sets
    • 1...Bd4
      • 2.Rxd4#
    • 1...Be5
      • 2.Sxe5#
    • 1...Sxb1
      • 2.Ba6#
    • 1...Sxd1
      • 2.Be6#
    • 1...Sxe2
      • 2.Ba6#
      • 2.Be6#
    • 1...Sb5
      • 2.Be6#
    • 1...Sd5
      • 2.Ba6#
  • Tries
    • 1.Qxc3+?
      • 1...Bxc3
        • 2.Ba6#
        • 2.Be6#
      • 1...Sxc3!
    • 1.Qe3?
      • threat
        • 2.Qc5#
      • 1...Sxb1
        • 2.Ba6#
      • 1...Sxd1
        • 2.Be6#
      • 1...Bd4
        • 2.Rxd4#
        • 2.Qxd4#
      • 1...Sb4
        • 2.Rxb4#
      • 1...c5
        • 2.Qxc5#
      • 1...fxe3!
  • Keys
    • 1.Qh5!
      • threat
        • 2.Qc5#
      • 1...Sxb1
        • 2.Be6#
      • 1...Sxd1
        • 2.Ba6#
      • 1...Bd4
        • 2.Rxd4#
      • 1...Be5
        • 2.Sxe5#
      • 1...Sb4
        • 2.Rxb4#
      • 1...Sd5
        • 2.Ba6#
      • 1...c5
        • 2.Qxc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • B(h);N_GUARD::R1(B),XB(h)
    • B(h);N_GUARD::S(G),XB(h)
    • S(b);N_GUARD,XR(A)::B(H)
    • S(b);N_GUARD,XR(B)::B(H)
    • S(b);N_GUARD::B(H)
  • Tries
    • Try
      • Q(E);CHECK,XS(b)
      • Refutation
        • S(a);XQ(E)
    • Try
      • Q(E);
      • Threat
        • QAR1(E)
      • Vars
        • S(b);N_GUARD,XR(A)::B(H)
        • S(b);N_GUARD,XR(B)::B(H)
        • S(a);N_GUARD::R1(A),XS(a)
        • P(g);::QAR1(E),XP(g)
      • Refutation
        • P(f);XQ(E)
  • Actual
    • Q(E);
    • Threat
      • QAR1(E)
    • Vars
      • S(b);N_GUARD,XR(A)::B(H)
      • S(b);N_GUARD,XR(B)::B(H)
      • B(h);N_GUARD::R1(B),XB(h)
      • B(h);N_GUARD::S(G),XB(h)
      • S(a);N_GUARD::R1(A),XS(a)
      • S(b);N_GUARD::B(H)
      • P(g);::QAR1(E),XP(g)
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