MESON Chess Problem Database

Problem Display
PID: 49618 (N3K3/p7/3k4/1R1N2P1/PP2RP2/1rp1p1p1/B1P1P1nb/7Q w - - 0 1)

Lider, Valentin Viktorovich

3rd Comm., Het Belgisch Schaakbord (L'Echiquier Belge), 1980-1981

N3K3/p7/3k4/1R1N2P1/PP2RP2/1rp1p1p1/B1P1P1nb/7Q

#2

13 + 8

5110 Bekroonde Problemen 2002

SOLUTION

  • SOUND
  • Sets
    • 1...Kc6
      • 2.Re6#
    • 1...Bg1
      • 2.Qh6#
  • Tries
    • 1.Sdc7?
      • threat
        • 2.Re6#
      • 1...Kc6
        • 2.Re6#
      • 1...Sxf4!
    • 1.Se7?
      • threat
        • 2.Rd5#
        • 2.Qd1#
      • 1...Rxb4
        • 2.Re6#
        • 2.Rd5#
      • 1...Rb1
        • 2.Rd4#
        • 2.Re6#
        • 2.Rd5#
      • 1...Bg1
        • 2.Rd5#
        • 2.Qh6#
      • 1...Se1
        • 2.Rd5#
      • 1...Sxf4!
    • 1.Sac7?
      • threat
        • 2.Re6#
      • 1...Kc6
        • 2.Re6#
      • 1...Sxf4!
    • 1.f5?
      • threat
        • 2.Re6#
      • 1...Kc6
        • 2.Re6#
      • 1...Sf4!
  • Keys
    • 1.Rd4!
      • 1...Kc6
        • 2.Se7#
      • 1...Ke6
        • 2.Sdc7#
      • 1...Rxb4
        • 2.Sxb4#
      • 1...Sxf4
        • 2.Sxf4#
      • 1...Se1
        • 2.Sdc7#
      • 1...Rb1
        • 2.Se7#
      • 1...Rb2
        • 2.Se7#
      • 1...Ra3
        • 2.Se7#
      • 1...Bg1
        • 2.Qh6#
      • 1...Sh4
        • 2.Sdc7#
      • 1...a5
        • 2.Rb6#
      • 1...a6
        • 2.Rb6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 10
    • REMOVED MATES = 0
  • Sets
    • K(g);P-FLIGHT::R(G)
    • B(b);OGATE::QAR(A)
  • Tries
    • Try
      • S(J);
      • Threat
        • R1(G)
      • Vars
        • K(g);P-FLIGHT::R(G)
      • Refutation
        • S(a);XP(H)
    • Try
      • S(J);
      • Threat
        • DUALS(2)
      • Vars
        • S(a);::R1(I)
      • Refutation
        • S(a);XP(H)
    • Try
      • S(L);
      • Threat
        • R1(G)
      • Vars
        • K(g);P-FLIGHT::R(G)
      • Refutation
        • S(a);XP(H)
    • Try
      • P(H);
      • Threat
        • R1(G)
      • Vars
        • K(g);P-FLIGHT::R(G)
      • Refutation
        • S(a);
  • Actual
    • R(G);
    • Vars
      • K(g);P-FLIGHT::S(J)
      • R(c);XP(F)::R(G)+S(J),XR(c)
      • S(a);XP(H)::R(G)+S(J),XS(a)
      • S(a);::R(G)+S(J)
      • R(c);::R(G)+S(J)
      • B(b);OGATE::QAR(A)
      • P(h);N_GUARD::R(I)
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