MESON Chess Problem Database

Problem Display
PID: 61708 (2Q1n1b1/1p4R1/1p1BR3/1P1k2K1/2p5/4p3/4N3/6b1 w - - 0 1)

Pankratiev, Aleksandr Nikolaevich

2nd HM., Die Schwalbe, 2005

2Q1n1b1/1p4R1/1p1BR3/1P1k2K1/2p5/4p3/4N3/6b1

#2

7 + 8

23 Die Schwalbe 2007

SOLUTION

  • SOUND
  • Tries
    • 1.Rd7?
      • threat
        • 2.Re5#
      • 1...Kxe6
        • 2.Sf4#
      • 1...Bxe6
        • 2.Qxb7#
      • 1...Sxd6
        • 2.Rdxd6#
      • 1...Bh2!
    • 1.Rge7?
      • threat
        • 2.Qxb7#
      • 1...Bxe6
        • 2.Qxe6#
      • 1...Sxd6
        • 2.Re5#
      • 1...c3!
    • 1.Qc5+?
      • 1...Kxe6
        • 2.Sd4#
        • 2.Sf4#
        • 2.Re7#
        • 2.Qe5#
      • 1...bxc5!
    • 1.Qc6+?
      • 1...Kxe6
        • 2.Sd4#
        • 2.Sf4#
        • 2.Re7#
      • 1...bxc6!
  • Keys
    • 1.Re4!
      • threat
        • 2.Rd4#
      • 1...Kxe4
        • 2.Qf5#
      • 1...Kxd6
        • 2.Rd7#
      • 1...Sxd6
        • 2.Sc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(F);
      • Threat
        • R1(E)
      • Vars
        • K(d);S_FLIGHT,XR(E)::S(A)
        • B(h);SBLOCK,XR(E)::QAB(G),XP(f)
        • S(g);OGATE,P_SPINS(g),XB(D)::R1(F),XS(g)
      • Refutation
        • B(a);
    • Try
      • R(F);
      • Threat
        • QAB(G),XP(f)
      • Vars
        • B(h);OGATE,XR(E)::QAB1(G),XB(h)
        • S(g);SBLOCK,XB(D)::R1(E)
      • Refutation
        • P(c);
    • Try
      • Q(G);CHECK
      • Refutation
        • P(e);XQ(G)
    • Try
      • Q(G);CHECK
      • Refutation
        • P(f);XQ(G)
  • Actual
    • R(E);
    • Threat
      • R1(E)
    • Vars
      • K(d);S_FLIGHT,XR(E)::QAB1(G)
      • K(d);OGATEB,P-FLIGHT,XB(D)::R1(F)
      • S(g);SBLOCK,XB(D)::S(A)
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