MESON Chess Problem Database

Problem Display
PID: 15647 (5QbK/1R6/8/8/NNp5/k3b2R/PpBr4/1r2B3 w - - 0 1)

Gross, Erwin

Schach-Echo, 1986

5QbK/1R6/8/8/NNp5/k3b2R/PpBr4/1r2B3

#2

9 + 7

3297 FIDE Album (1986-1988) 1995
5454 Near Snap 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Sc3?
      • threat
        • 2.Sxb1#
        • 2.Sb5#
      • 1...Rxe1
        • 2.Sb5#
      • 1...Rxc2
        • 2.Sxc2#
      • 1...Ra1
        • 2.Sb5#
      • 1...Rc1
        • 2.Sb5#
      • 1...Rbd1
        • 2.Sb5#
      • 1...Rdd1
        • 2.Sb5#
      • 1...Rd5
        • 2.Sxb1#
      • 1...Bc5
        • 2.Sxb1#
      • 1...Bd4+!
    • 1.Sc5?
      • threat
        • 2.Qa8#
      • 1...Rd8
        • 2.Ra7#
      • 1...Rd6!
    • 1.Ra7?
      • threat
        • 2.Sb6#
      • 1...Rd5
        • 2.Sc5#
      • 1...Rd7!
    • 1.Qa8?
      • threat
        • 2.Sc5#
      • 1...Rd6
        • 2.Sb6#
      • 1...Rd8!
  • Keys
    • 1.Sb6!
      • threat
        • 2.Ra7#
      • 1...Rd5
        • 2.Sxc4#
      • 1...Rd7
        • 2.Qa8#

Anticipated by 255639(1984)

This anticipates 40971(2000)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(E);N_PINB(e)
      • Threat
        • DUALS(2)
      • Vars
        • R(a);XB(A)::S(E)
        • R(c);XB(C)::QAB(H)+S(F),DCHECK,XR(c)
        • R(a);::S(E)
        • R(c);::S(E)
        • R(c);::S(E),XR(a)
        • B(e);::R(D)+S(E),DCHECK,XR(a)
      • Refutation
        • B(e);CHECK
    • Try
      • S(E);
      • Threat
        • QAR(H)
      • Vars
        • R(c);::R(G)
      • Refutation
        • R(c);
    • Try
      • R(G);
      • Threat
        • R(G)+S(E)
      • Vars
        • R(c);::R(G)+S(E)
      • Refutation
        • R(c);
    • Try
      • Q(H);
      • Threat
        • QAR(H)+S(E)
      • Vars
        • R(c);::QAR(H)+S(E)
      • Refutation
        • R(c);
  • Actual
    • S(E);
    • Threat
      • R(G)
    • Vars
      • R(c);S_CUTB(g)::S(E),XP(f)
      • R(c);::QAR(H)
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