MESON Chess Problem Database

Problem Display
PID: 99598 (2b4b/q1p4p/6NQ/1Rn1P3/4k3/2r5/2N2R1p/B4B1K w - - 0 1)

Gallai, Janos

Pest megyei Sakkszovetseg, 1966

2b4b/q1p4p/6NQ/1Rn1P3/4k3/2r5/2N2R1p/B4B1K

#2

9 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sb3
      • 2.Rf4#
      • 2.Qf4#
    • 1...Sd3
      • 2.Bg2#
    • 1...Sa4
      • 2.Rf4#
      • 2.Qf4#
    • 1...Sa6
      • 2.Rf4#
      • 2.Qf4#
    • 1...Sb7
      • 2.Rf4#
      • 2.Qf4#
    • 1...Sd7
      • 2.Rf4#
      • 2.Qf4#
      • 2.Qh4#
  • Keys
    • 1.Se7!
      • threat
        • 2.Qf4#
      • 1...Kxe5
        • 2.Re2#
      • 1...Bxe5
        • 2.Qc6#
      • 1...Rf3
        • 2.Rb4#
      • 1...Sd3
        • 2.Bg2#
      • 1...Se6
        • 2.Qxh7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • S(d);SBLOCK,S_CUTR(b)::B(B)
  • Actual
    • S(H);
    • Threat
      • QAR1(I)
    • Vars
      • K(c);P-FLIGHT,P_SPINR(b),P_SPINS(d),XP(G)::R(E)
      • B(i);SBLOCK,XP(G)::QAB(I)
      • R(b);N_GUARD::R(F)
      • S(d);SBLOCK,S_CUTR(b)::B(B)
      • S(d);S_CUTB(h)::QAB(I),XP(g)
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