MESON Chess Problem Database

Problem Display
PID: 75510 (1n4n1/1R2pp1N/N1p1k3/3b3Q/K1p5/B3PpP1/3R1q1b/8 w - - 0 1)

Paslack, Rainer

The Problemist Supplement, 2007

1n4n1/1R2pp1N/N1p1k3/3b3Q/K1p5/B3PpP1/3R1q1b/8

#2

9 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Be4
      • 2.Sc5#
      • 2.Sc7#
    • 1...Sd7
      • 2.Sc7#
    • 1...Sf6
      • 2.Sf8#
      • 2.Rxe7#
    • 1...Sh6
      • 2.Rxe7#
    • 1...c5
      • 2.Qxd5#
    • 1...f6
      • 2.Sf8#
  • Tries
    • 1.e4?
      • threat
        • 2.Qf5#
      • 1...Bxe4
        • 2.Sc7#
      • 1...c5
        • 2.Qxd5#
      • 1...f5
        • 2.Qxf5#
      • 1...Sh6
        • 2.Rxe7#
      • 1...f6
        • 2.Sf8#
      • 1...Qc5!
  • Keys
    • 1.g4!
      • threat
        • 2.Qf5#
      • 1...c5
        • 2.Qxd5#
      • 1...f5
        • 2.Qxf5#
      • 1...Be4
        • 2.Sc5#
      • 1...Sh6
        • 2.Rxe7#
      • 1...f6
        • 2.Sf8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • S(j);SBLOCK::S(G)
    • S(k);N_GUARD::R1(H),XP(h)
    • P(f);N_GUARD::QAB1(F),XB(e)
    • P(i);SBLOCK::S(I)
  • Tries
    • Try
      • P(C);
      • Threat
        • QAB1(F)
      • Vars
        • B(e);XP(C)::S(G)
        • P(f);N_GUARD::QAB1(F),XB(e)
        • P(i);::QAB1(F),XP(i)
        • S(k);N_GUARD::R1(H),XP(h)
        • P(i);SBLOCK::S(I)
      • Refutation
        • Q(a);
  • Actual
    • P(D);
    • Threat
      • QAB1(F)
    • Vars
      • P(f);N_GUARD::QAB1(F),XB(e)
      • P(i);::QAB1(F),XP(i)
      • B(e);::S(G)
      • S(k);N_GUARD::R1(H),XP(h)
      • P(i);SBLOCK::S(I)
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