MESON Chess Problem Database

Problem Display
PID: 163503 (3B4/5r1B/4P1rp/2Q5/2N2k2/6p1/R5K1/2b5 w - - 0 1)

Jaeger, Peter R

Basler Zeitung, 1984

3B4/5r1B/4P1rp/2Q5/2N2k2/6p1/R5K1/2b5

#2

7 + 6

15601 Albrecht-Leiss-Degener Collection 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Rg4
      • 2.Qd4#
      • 2.Qd6#
      • 2.Qe5#
    • 1...Rg5
      • 2.Qd4#
    • 1...Rgg7
      • 2.Qd4#
    • 1...Rg8
      • 2.Qd4#
    • 1...Rf5
      • 2.Qd4#
  • Keys
    • 1.Ra4!
      • threat
        • 2.Sb2#
        • 2.Sd2#
        • 2.Sa3#
        • 2.Se3#
        • 2.Sa5#
        • 2.Sb6#
        • 2.Sd6#
      • 1...Ke4
        • 2.Sb2#
      • 1...Kg4
        • 2.Se3#
      • 1...Rxe6
        • 2.Se5#
      • 1...Ra7
        • 2.Sa5#
      • 1...Rb7
        • 2.Sb6#
      • 1...Rd7
        • 2.Sd6#
      • 1...Bb2
        • 2.Sxb2#
      • 1...Bd2
        • 2.Sxd2#
      • 1...Ba3
        • 2.Sxa3#
      • 1...Be3
        • 2.Sxe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 10
    • REMOVED MATES = 4
  • Sets
    • R(d);::QAR2(D)
    • R(f);SBLOCK::QAR2(D)
  • Actual
    • R(A);
    • Threat
      • DUALS(7)
    • Vars
      • K(c);P-FLIGHT,P_SPINR(d)::R(A)+S(C)
      • K(c);P-FLIGHT::R(A)+S(C),DCHECK
      • R(d);XP(E)::R(A)+S(C)
      • R(f);::R(A)+S(C)
      • B(a);::R(A)+S(C),XB(a)
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