MESON Chess Problem Database

Problem Display
PID: 61306 (8/7p/7P/3pQ3/3pn2K/3P1p1P/2P1k2p/2B4R w - - 0 1)

Hannelius, Jan Ingvar

Problem Observer, 2005

8/7p/7P/3pQ3/3pn2K/3P1p1P/2P1k2p/2B4R

#2

8 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Kf2
      • 2.Qxh2#
    • 1...f2
      • 2.Qh5#
  • Tries
    • 1.Kg4?
      • 1...Kf2
        • 2.Qxh2#
      • 1...f2!
    • 1.Kh5?
      • 1...Kf2
        • 2.Qxh2#
      • 1...f2!
    • 1.Bf4?
      • 1...f2
        • 2.Qh5#
      • 1...Kf2!
    • 1.Bg5?
      • 1...Kf2
        • 2.Qxh2#
      • 1...f2!
    • 1.Qe6?
      • 1...f2
        • 2.Qg4#
      • 1...Kf2!
    • 1.Qe8?
      • 1...f2
        • 2.Qh5#
      • 1...Kf2!
  • Keys
    • 1.Qf4!
      • 1...Kf2
        • 2.Qxh2#
      • 1...f2
        • 2.Qg4#
      • 1...Sd2
        • 2.Qxd2#
      • 1...Sf2
        • 2.Qd2#
      • 1...Sc3
        • 2.Qd2#
      • 1...Sg3
        • 2.Qd2#
      • 1...Sc5
        • 2.Qd2#
      • 1...Sg5
        • 2.Qd2#
      • 1...Sd6
        • 2.Qd2#
      • 1...Sf6
        • 2.Qd2#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 1
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • K(a);N_SPINS(e),P-FLIGHT::QAR2(G),XP(b)
    • P(c);OGATEB,SBLOCK::QAB(G)
  • Tries
    • Try
      • K(F);P-FLIGHT
      • Vars
        • K(a);N_SPINS(e),P-FLIGHT::QAR2(G),XP(b)
      • Refutation
        • P(c);
    • Try
      • K(F);P-FLIGHT
      • Vars
        • K(a);N_SPINS(e),P-FLIGHT::QAR2(G),XP(b)
      • Refutation
        • P(c);
    • Try
      • B(A);
      • Vars
        • P(c);OGATEB,SBLOCK::QAB(G)
      • Refutation
        • K(a);N_SPINS(e),P-FLIGHT
    • Try
      • B(A);
      • Vars
        • K(a);N_SPINS(e),P-FLIGHT::QAR2(G),XP(b)
      • Refutation
        • P(c);
    • Try
      • Q(G);
      • Vars
        • P(c);OGATEB,SBLOCK::QAB(G)
      • Refutation
        • K(a);N_SPINS(e),P-FLIGHT
    • Try
      • Q(G);
      • Vars
        • P(c);OGATEB,SBLOCK::QAB(G)
      • Refutation
        • K(a);N_SPINS(e),P-FLIGHT
  • Actual
    • Q(G);N_PINS(e)
    • Vars
      • K(a);P-FLIGHT,P_SPINP(c)::QAR2(G),XP(b)
      • P(c);OGATEB,SBLOCK::QAB(G)
      • S(e);N_GUARD::QAR1(G),XS(e)
      • S(e);N_GUARD,SBLOCK::QAR1(G)
      • S(e);N_GUARD::QAR1(G)
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Developed and maintained by Brian Stephenson.
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