MESON Chess Problem Database

Problem Display
PID: 120887 (8/7p/3p1B1R/3P4/2B2k2/4p1p1/4Q1p1/6Kb w - - 0 1)

Beck, Friedrich

Caissa, 1954

8/7p/3p1B1R/3P4/2B2k2/4p1p1/4Q1p1/6Kb

#2

6 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Ke4
      • 2.Qg4#
    • 1...Kf5
      • 2.Qf3#
  • Tries
    • 1.Ba2?
      • 1...Kf5
        • 2.Qf3#
      • 1...Ke4!
    • 1.Bb3?
      • 1...Kf5
        • 2.Qf3#
      • 1...Ke4!
    • 1.Bb5?
      • 1...Kf5
        • 2.Qf3#
      • 1...Ke4!
    • 1.Ba6?
      • 1...Kf5
        • 2.Qf3#
      • 1...Ke4!
    • 1.Rh5?
      • 1...Ke4
        • 2.Qg4#
      • 1...h6!
    • 1.Rxh7?
      • 1...Ke4
        • 2.Qg4#
      • 1...Kf5!
    • 1.Qd1?
      • 1...Ke4
        • 2.Qg4#
      • 1...Kf5
        • 2.Qf3#
      • 1...e2!
    • 1.Qh5?
      • 1...Ke4
        • 2.Qg4#
      • 1...e2!
    • 1.Qc2?
      • 1...Kf3
        • 2.Qf5#
      • 1...Kg4
        • 2.Qe4#
      • 1...e2!
    • 1.Qxe3+?
      • 1...Kg4
        • 2.Qe4#
      • 1...Kf5
        • 2.Qf3#
      • 1...Kxe3!
  • Keys
    • 1.Qd3!
      • 1...Kf3
        • 2.Qf5#
      • 1...Kg4
        • 2.Qe4#
      • 1...e2
        • 2.Rh4#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • K(e);P-FLIGHT,P_SPINP(c)::QAR2(B)
    • K(e);P-FLIGHT::QAR2(B)
  • Tries
    • Try
      • B(C);
      • Vars
        • K(e);P-FLIGHT::QAR2(B)
      • Refutation
        • K(e);P-FLIGHT,P_SPINP(c)
    • Try
      • B(C);
      • Vars
        • K(e);P-FLIGHT::QAR2(B)
      • Refutation
        • K(e);P-FLIGHT,P_SPINP(c)
    • Try
      • B(C);
      • Vars
        • K(e);P-FLIGHT::QAR2(B)
      • Refutation
        • K(e);P-FLIGHT,P_SPINP(c)
    • Try
      • B(C);
      • Vars
        • K(e);P-FLIGHT::QAR2(B)
      • Refutation
        • K(e);P-FLIGHT,P_SPINP(c)
    • Try
      • R(F);
      • Vars
        • K(e);P-FLIGHT,P_SPINP(c)::QAR2(B)
      • Refutation
        • P(g);
    • Try
      • R(F);XP(g)
      • Vars
        • K(e);P-FLIGHT,P_SPINP(c)::QAR2(B)
      • Refutation
        • K(e);P-FLIGHT
    • Try
      • Q(B);
      • Vars
        • K(e);P-FLIGHT::QAR2(B)
      • Refutation
        • P(c);
    • Try
      • Q(B);
      • Vars
        • K(e);P-FLIGHT::QAR2(B)
      • Refutation
        • P(c);
    • Try
      • Q(B);
      • Vars
        • K(e);P-FLIGHT::QAR2(B)
      • Refutation
        • P(c);
    • Try
      • Q(B);CHECK,XP(c)
      • Vars
        • K(e);P-FLIGHT::QAR2(B)
      • Refutation
        • K(e);S_FLIGHT,XQ(B)
  • Actual
    • Q(B);
    • Vars
      • K(e);P-FLIGHT,P_SPINP(c)::QAR2(B)
      • K(e);P-FLIGHT::QAR2(B)
      • P(c);::R(F)
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