MESON Chess Problem Database

Problem Display
PID: 96302 (6B1/3K4/3N4/Qpkr4/P1NnR3/8/6nB/8 w - - 0 1)

Brenner, Klaus

Problemesis, 2006

6B1/3K4/3N4/Qpkr4/P1NnR3/8/6nB/8

#2

8 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Re5
      • 2.Sb7#
      • 2.Rxe5#
    • 1...Rf5
      • 2.Sb7#
    • 1...Rg5
      • 2.Sb7#
    • 1...Rh5
      • 2.Sb7#
    • 1...Rxd6+
      • 2.Bxd6#
    • 1...Sc2
      • 2.Qxb5#
    • 1...Se2
      • 2.Qxb5#
    • 1...Sb3
      • 2.Qxb5#
    • 1...Sf3
      • 2.Qxb5#
    • 1...Sf5
      • 2.Qxb5#
    • 1...Sc6
      • 2.Qxb5#
    • 1...Se6
      • 2.Qxb5#
  • Keys
    • 1.axb5!
      • threat
        • 2.Qa3#
      • 1...Rxd6+
        • 2.Bxd6#
      • 1...Sxb5
        • 2.Qxb5#
      • 1...Sc2
        • 2.b6#
      • 1...Sc6
        • 2.bxc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 8
  • Sets
    • R(e);N_PINS(F)::S(F)
    • R(e);CHECK,OGATE,XS(F)::B(A),XR(e)
    • S(b);N_GUARD::QAR1(E),XP(c)
  • Actual
    • P(B);XP(c)
    • Threat
      • QAB(E)
    • Vars
      • R(e);CHECK,OGATE,XS(F)::B(A),XR(e)
      • S(b);OGATE,P_SPINS(b),XP(B)::QAR1(E),XS(b)
      • S(b);N_GUARD::QAR(E)+P(B)
      • S(b);OGATE::QAR(E)+P(B),XS(b)
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