MESON Chess Problem Database

Problem Display
PID: 99253 (6B1/5R2/N3R3/2br4/P1kB4/6p1/K1N1P1Q1/6nq w - - 0 1)

Labai, Zoltan

Sakkelet, 1998

6B1/5R2/N3R3/2br4/P1kB4/6p1/K1N1P1Q1/6nq

#2

10 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sxe2
      • 2.Qxe2#
  • Tries
    • 1.Re3?
      • threat
        • 2.Rc3#
      • 1...Rxd4
        • 2.Rf4#
      • 1...Bxd4
        • 2.Sa3#
      • 1...Sxe2
        • 2.Qxe2#
      • 1...Bb4!
    • 1.Re4?
      • threat
        • 2.Se3#
      • 1...Rxd4
        • 2.Rf3#
      • 1...Bxd4
        • 2.Rc7#
      • 1...Sxe2
        • 2.Qxe2#
      • 1...Qh6!
  • Keys
    • 1.Rf4!
      • threat
        • 2.Se3#
      • 1...Rxd4
        • 2.Re3#
      • 1...Bxd4
        • 2.Rc6#
      • 1...Sxe2
        • 2.Qxe2#
      • 1...Re5
        • 2.Rxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • S(a);OGATE,XP(C)::QAB(D),XS(a)
  • Tries
    • Try
      • R(H);
      • Threat
        • R1(H)
      • Vars
        • R(f);OGATEB,XB(F)::B(J)+R(I)
        • B(e);N_GUARD,SBLOCK,XB(F)::S(B)
        • S(a);OGATE,XP(C)::QAB(D),XS(a)
      • Refutation
        • B(e);
    • Try
      • R(H);
      • Threat
        • S(B)
      • Vars
        • R(f);OGATEB,P_SPINR(f),XB(F)::B(J)+R(I)
        • B(e);OGATEB,P_SPINB(e),XB(F)::R(I)
        • S(a);OGATE,XP(C)::QAB(D),XS(a)
      • Refutation
        • Q(b);
  • Actual
    • R(I);
    • Threat
      • S(B)
    • Vars
      • R(f);OGATEB,P_SPINR(f),XB(F)::B(J)+R(H)
      • B(e);OGATEB,P_SPINB(e),XB(F)::R(H)
      • S(a);OGATE,XP(C)::QAB(D),XS(a)
      • R(f);OGATEB::B(J)+R(H),XR(f)
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