MESON Chess Problem Database

Problem Display
PID: 93915 (2Q5/pR2pK2/3p3b/2nk1n2/3p4/1P1N4/2P5/8 w - - 0 1)

Zimmermann, Stepan

Casopis ceskoslovenskych sachistu, 1908

2Q5/pR2pK2/3p3b/2nk1n2/3p4/1P1N4/2P5/8

#2

6 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Se4
      • 2.Qc4#
    • 1...Sxb7
      • 2.Qxb7#
  • Tries
    • 1.Qxf5+?
      • 1...e5
        • 2.Sb4#
      • 1...Kc6!
  • Keys
    • 1.Qa8!
      • threat
        • 2.Rb5#
      • 1...Ke4
        • 2.Rxe7#
      • 1...Kc6
        • 2.Sb4#
      • 1...Sxb3
        • 2.Rb4#
        • 2.Rc7#
      • 1...Sxb7
        • 2.Qxb7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • S(b);OGATE,SBLOCK::QAB1(F)
    • S(b);OGATE,XR(D)::QAB(F),XS(b)
  • Tries
    • Try
      • Q(F);CHECK,XS(d)
      • Vars
        • P(h);P_SPINP(h)::S(C)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • Q(F);
    • Threat
      • QAB(F)+R(D)
    • Vars
      • K(c);S_FLIGHT::QAB(F)+R(D),DCHECK,XP(h)
      • K(c);S_FLIGHT::S(C)
      • S(b);OGATE,P_SPINS(b),XR(D)::QAB(F),XS(b)
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