MESON Chess Problem Database

Problem Display
PID: 41564 (8/2R3Kn/3pP2Q/3k4/4b1P1/5B2/4r3/B7 w - - 0 1)

Maleika, Gerhard

Die Schwalbe, 2002

8/2R3Kn/3pP2Q/3k4/4b1P1/5B2/4r3/B7

#2

7 + 5

SOLUTION

  • SOUND
  • Tries
    • 1.Qg5+?
      • 1...Kxe6
        • 2.Re7#
      • 1...Sxg5!
    • 1.Qh5+?
      • 1...Kxe6
        • 2.Qf7#
      • 1...Sg5!
    • 1.Qg6?
      • threat
        • 2.Qf5#
      • 1...Rb2
        • 2.Qxe4#
      • 1...Bxf3!
    • 1.Qxh7?
      • threat
        • 2.Qf5#
      • 1...Kxe6
        • 2.Qg8#
      • 1...Rb2
        • 2.Qxe4#
      • 1...Bxf3!
  • Keys
    • 1.Qf4!
      • threat
        • 2.Qf5#
      • 1...Kxe6
        • 2.Qf7#
      • 1...Bxf3
        • 2.Qc4#
      • 1...Rb2
        • 2.Qxe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(E);CHECK
      • Vars
        • K(c);N_SPINB(b),S_FLIGHT,XP(D)::R1(F)
      • Refutation
        • S(e);XQ(E)
    • Try
      • Q(E);CHECK
      • Vars
        • K(c);N_SPINB(b),OGATEB,S_FLIGHT,XP(D)::QAB1(E)
      • Refutation
        • S(e);P_SPINS(e)
    • Try
      • Q(E);
      • Threat
        • QAR2(E)
      • Vars
        • R(a);N_GUARD::QAB1(E),XB(b)
      • Refutation
        • B(b);N_SPINB(b),XB(B)
    • Try
      • Q(E);XS(e)
      • Threat
        • QAR2(E)
      • Vars
        • K(c);N_SPINB(b),OGATEB,S_FLIGHT,XP(D)::QAB(E)
        • R(a);N_GUARD::QAB1(E),XB(b)
      • Refutation
        • B(b);N_SPINB(b),XB(B)
  • Actual
    • Q(E);
    • Threat
      • QAR2(E)
    • Vars
      • K(c);N_SPINB(b),OGATEB,S_FLIGHT,XP(D)::QAB1(E)
      • B(b);N_SPINB(b),OGATE,XB(B)::QAB1(E)
      • R(a);N_GUARD::QAB1(E),XB(b)
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