MESON Chess Problem Database

Problem Display
PID: 6602 (8/2Q5/8/2n1R3/1r5k/1n6/7K/8 w - - 0 1)

Nemo, Ottmar (Weiss, Ottmar)

Die Schwalbe, 1932

8/2Q5/8/2n1R3/1r5k/1n6/7K/8

#2

3 + 4

3295 Einfuhrung in die Welt des Schachproblem 1984

SOLUTION

  • SOUND
  • Sets
    • 1...Rg4
      • 2.Qh7#
  • Tries
    • 1.Rxc5?
      • threat
        • 2.Qg3#
      • 1...Kg4
        • 2.Qg3#
      • 1...Rf4
        • 2.Qxf4#
      • 1...Rg4
        • 2.Qh7#
      • 1...Sxc5!
    • 1.Rf5?
      • threat
        • 2.Qg3#
      • 1...Rf4
        • 2.Qxf4#
      • 1...Rg4
        • 2.Qh7#
      • 1...Se4
        • 2.Qf4#
      • 1...Kg4!
    • 1.Qg7?
      • threat
        • 2.Qg3#
        • 2.Qg5#
      • 1...Rg4
        • 2.Qh6#
        • 2.Qh8#
        • 2.Qh7#
      • 1...Se6
        • 2.Qg3#
      • 1...Se4!
  • Keys
    • 1.Rd5!
      • threat
        • 2.Qg3#
      • 1...Kg4
        • 2.Qg3#
      • 1...Rf4
        • 2.Qxf4#
      • 1...Rg4
        • 2.Qh7#
      • 1...Se4
        • 2.Qf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • R(b);SBLOCK::QAR(C)
  • Tries
    • Try
      • R(B);XS(d)
      • Threat
        • QAB1(C)
      • Vars
        • K(c);P-FLIGHT::QAR1(C)
        • R(b);N_GUARD::QAR2(C),XR(b)
        • R(b);SBLOCK::QAR(C)
      • Refutation
        • S(a);XR(B)
    • Try
      • R(B);
      • Threat
        • QAB1(C)
      • Vars
        • R(b);N_GUARD::QAR2(C),XR(b)
        • R(b);SBLOCK::QAR(C)
        • S(d);S_CUTR(b)::QAR2(C)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • Q(C);
      • Threat
        • DUALS(2)
      • Vars
        • S(d);::QAB1(C)
      • Refutation
        • S(d);
  • Actual
    • R(B);
    • Threat
      • QAB1(C)
    • Vars
      • K(c);P-FLIGHT::QAR1(C)
      • R(b);N_GUARD::QAR2(C),XR(b)
      • R(b);SBLOCK::QAR(C)
      • S(d);S_CUTR(b)::QAR2(C)
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