MESON Chess Problem Database

Problem Display
PID: 268862 (3kr2R/1BnpN3/8/4Q2n/8/7b/8/4K3 w - - 0 1)

Schmoll, Werner

Troll, 2022

(First published on Wed Sep 14 2022)

3kr2R/1BnpN3/8/4Q2n/8/7b/8/4K3

#2

5 + 6

SOLUTION

  • SOUND
  • Tries
    • 1.Sf5?
      • threat
        • 2.Qe7#
      • 1...Sb5
        • 2.Rxe8#
      • 1...Sd5
        • 2.Rxe8#
      • 1...Sa6
        • 2.Rxe8#
      • 1...Se6
        • 2.Qb8#
      • 1...Sa8
        • 2.Rxe8#
      • 1...Bxf5!
    • 1.Sg6?
      • threat
        • 2.Qe7#
      • 1...Sb5
        • 2.Rxe8#
      • 1...Sd5
        • 2.Rxe8#
      • 1...Sa6
        • 2.Rxe8#
      • 1...Se6
        • 2.Qb8#
      • 1...Sa8
        • 2.Rxe8#
      • 1...Be6!
  • Keys
    • 1.Sd5!
      • threat
        • 2.Qe7#
      • 1...Sxd5
        • 2.Rxe8#
      • 1...Be6
        • 2.Qxc7#
      • 1...Se6
        • 2.Qb8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);P_SPINQ(B)
      • Threat
        • QAB1(B)
      • Vars
        • S(c);N_GUARD::R1(E),XR(f)
        • S(c);N_PINQ(B)::QAR2(B)
      • Refutation
        • B(a);XS(D)
    • Try
      • S(D);P_SPINQ(B)
      • Threat
        • QAB1(B)
      • Vars
        • S(c);N_GUARD::R1(E),XR(f)
        • S(c);N_PINQ(B)::QAR2(B)
      • Refutation
        • B(a);N_PINQ(B)
  • Actual
    • S(D);P_SPINQ(B)
    • Threat
      • QAB1(B)
    • Vars
      • S(c);N_GUARD,XS(D)::R1(E),XR(f)
      • B(a);N_PINQ(B)::QAB1(B),XS(c)
      • S(c);N_PINQ(B)::QAR2(B)
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