MESON Chess Problem Database

Problem Display
PID: 9794 (4k3/8/4K3/8/2n3n1/8/2R3R1/4Q3 w - - 0 1)

L'Hermet, Johann Georg Rudolf

150 exzentrische Schachaufgaben, 1910

4k3/8/4K3/8/2n3n1/8/2R3R1/4Q3

#2

4 + 3

3295 Einfuhrung in die Welt des Schachproblem 1984
5454 Near Snap 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Sb2
      • 2.Rc8#
    • 1...Sd2
      • 2.Rc8#
    • 1...Sa3
      • 2.Rc8#
    • 1...Sce3
      • 2.Rc8#
    • 1...Sa5
      • 2.Rc8#
    • 1...Sce5
      • 2.Rc8#
    • 1...Sf2
      • 2.Rg8#
    • 1...Sh2
      • 2.Rg8#
    • 1...Sge3
      • 2.Rg8#
    • 1...Sge5
      • 2.Rg8#
  • Tries
    • 1.Qb4?
      • threat
        • 2.Qe7#
        • 2.Qb8#
      • 1...Kd8
        • 2.Qb8#
      • 1...Sb6
        • 2.Qe7#
      • 1...Sd6!
    • 1.Qh4?
      • threat
        • 2.Qe7#
        • 2.Qh8#
      • 1...Kf8
        • 2.Qh8#
      • 1...Sh6
        • 2.Qe7#
      • 1...Sf6!
    • 1.Qa1?
      • threat
        • 2.Qh8#
        • 2.Qa8#
      • 1...Kf8
        • 2.Qh8#
      • 1...Sb2
        • 2.Rc8#
        • 2.Qa8#
      • 1...Sa3
        • 2.Rc8#
        • 2.Qh8#
      • 1...Sa5
        • 2.Rc8#
        • 2.Qh8#
      • 1...Sce5
        • 2.Rc8#
        • 2.Qa8#
      • 1...Sb6
        • 2.Qh8#
      • 1...Sd6
        • 2.Qh8#
      • 1...Sge5
        • 2.Rg8#
        • 2.Qa8#
      • 1...Sf6
        • 2.Qa8#
      • 1...Sh6
        • 2.Qa8#
      • 1...Kd8!
  • Keys
    • 1.Qe5!
      • threat
        • 2.Qb8#
        • 2.Qh8#
      • 1...Kd8
        • 2.Qb8#
      • 1...Kf8
        • 2.Qh8#
      • 1...Scxe5
        • 2.Rc8#
      • 1...Sgxe5
        • 2.Rg8#
      • 1...Sf6
        • 2.Qb8#
      • 1...Sb6
        • 2.Qh8#
      • 1...Sd6
        • 2.Qh8#
      • 1...Sh6
        • 2.Qb8#

Anticipated by 156812(1905)

This anticipates 205554(1925)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 8
  • Sets
    • S(a);OGATE::R(B)
    • S(b);OGATE::R(C)
  • Tries
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • K(c);P-FLIGHT::QAR2(A)
        • S(a);::QAR1(A)
      • Refutation
        • S(a);
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • K(c);P-FLIGHT::QAR2(A)
        • S(b);::QAR1(A)
      • Refutation
        • S(b);
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • K(c);P-FLIGHT::QAR2(A)
        • S(a);::QAR(A)
        • S(b);::QAR(A)
      • Refutation
        • K(c);P-FLIGHT
  • Actual
    • Q(A);
    • Threat
      • DUALS(2)
    • Vars
      • K(c);P-FLIGHT::QAR2(A)
      • S(a);OGATE,XQ(A)::R(B)
      • S(b);OGATE,XQ(A)::R(C)
      • S(b);::QAR(A)
      • S(a);::QAR(A)
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