MESON Chess Problem Database

Problem Display
PID: 149226 (8/8/K1p5/2N5/1kpQ4/8/8/b1B5 w - - 0 1)

Zimmer, Eligiusz

Best Problems, 2010

8/8/K1p5/2N5/1kpQ4/8/8/b1B5

#2

4 + 4

15148 Sadier Collection 2013

SOLUTION

  • SOUND
  • Tries
    • 1.Sd3+?
      • 1...Ka4
        • 2.Qxc4#
      • 1...Kb3!
    • 1.Bd2+?
      • 1...Ka3
        • 2.Qxa1#
      • 1...Bc3!
    • 1.Qd2+?
      • 1...Kxc5
        • 2.Ba3#
      • 1...c3
        • 2.Qd4#
      • 1...Bc3!
  • Keys
    • 1.Qd8!
      • threat
        • 2.Qa5#
      • 1...Kc3
        • 2.Qd2#
      • 1...Kxc5
        • 2.Ba3#
      • 1...c3
        • 2.Qd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);CHECK
      • Vars
        • K(b);P-FLIGHT::QAR2(B),XP(c)
      • Refutation
        • K(b);N_SPINP(c),P-FLIGHT
    • Try
      • B(A);CHECK
      • Vars
        • K(b);N_SPINP(c),S_FLIGHT::QAR2(B),XB(a)
      • Refutation
        • B(a);P_SPINB(a)
    • Try
      • Q(B);CHECK,N_PINP(c)
      • Vars
        • K(b);S_FLIGHT,XS(C)::B(A)
        • P(c);OGATEB,P_SPINP(c)::QAR2(B)
      • Refutation
        • B(a);P_SPINB(a)
  • Actual
    • Q(B);N_PINP(c)
    • Threat
      • QAB1(B)
    • Vars
      • K(b);S_FLIGHT::QAB1(B)
      • K(b);S_FLIGHT,XS(C)::B(A)
      • P(c);OGATEB::QAR2(B)
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