MESON Chess Problem Database

Problem Display
PID: 187782 (Q5r1/1B2P3/2NN2pR/q1pk4/rn2RPP1/n5P1/7K/7b w - - 0 1)

von Sponer, Gyorgy Janos Andor

Pesti Naplo, 1909

Q5r1/1B2P3/2NN2pR/q1pk4/rn2RPP1/n5P1/7K/7b

#2

11 + 9

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...g5
      • 2.Sxb4#
      • 2.Re5#
      • 2.Qxg8#
  • Keys
    • 1.Sf5!
      • threat
        • 2.Sxb4#
      • 1...Kxe4
        • 2.Sxb4#
      • 1...Bxe4
        • 2.Qxg8#
      • 1...Sxc6
        • 2.Bxc6#
      • 1...c4
        • 2.Re5#
      • 1...Sa2
        • 2.Sb4#
        • 2.Sxa5#
        • 2.Sa7#
        • 2.Sb8#
        • 2.Sd8#
      • 1...Sbc2
        • 2.Sb4#
        • 2.Sxa5#
        • 2.Sa7#
        • 2.Sb8#
        • 2.Sd8#
      • 1...Sd3
        • 2.Sb4#
        • 2.Sxa5#
        • 2.Sa7#
        • 2.Sb8#
        • 2.Sd8#
      • 1...Sa6
        • 2.Sb4#
        • 2.Sxa5#
        • 2.Sa7#
        • 2.Sb8#
        • 2.Sd8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Actual
    • S(G);
    • Threat
      • B(I)+S(F),DCHECK,XS(d)
    • Vars
      • K(g);S_FLIGHT,XR(C)::B(I)+S(F),XS(d)
      • B(a);SBLOCK,XR(C)::QAB(K),XR(i)
      • S(d);OGATE,P_SPINS(d),XS(F)::B(I),XS(d)
      • P(f);SBLOCK::R1(C)
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