MESON Chess Problem Database

Problem Display
PID: 2180 (8/6Q1/8/8/8/2p2p2/2N1Np2/2K2k2 w - - 0 1)

Chocolous, Jiri

The Penny Illustrated Paper and Illustrated Times, 1900

8/6Q1/8/8/8/2p2p2/2N1Np2/2K2k2

#2

4 + 4

5062 111 Selected Problems by Famous Composers 1945
5454 Near Snap 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Qh8?
      • 1...Kg2
        • 2.Se3#
      • 1...fxe2
        • 2.Qh1#
      • 1...Kxe2!
    • 1.Qg4?
      • 1...Kxe2
        • 2.Qc4#
      • 1...fxe2!
    • 1.Qg5?
      • 1...Kxe2
        • 2.Qb5#
      • 1...fxe2!
    • 1.Qg6?
      • 1...Kxe2
        • 2.Qa6#
      • 1...fxe2!
    • 1.Qb7?
      • 1...Kxe2
        • 2.Qa6#
        • 2.Qb5#
      • 1...fxe2
        • 2.Qh1#
      • 1...Kg2!
    • 1.Qh7?
      • 1...Kg2
        • 2.Se3#
      • 1...fxe2
        • 2.Qh1#
      • 1...Kxe2!
    • 1.Qg8?
      • 1...Kxe2
        • 2.Qc4#
      • 1...fxe2!
  • Keys
    • 1.Qh6!
      • 1...Kxe2
        • 2.Qa6#
      • 1...Kg2
        • 2.Se3#
      • 1...fxe2
        • 2.Qh1#

This anticipates 9679(1908), 29034(1994)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(D);
      • Vars
        • K(a);S_FLIGHT::S(B)
        • P(d);SBLOCK,XS(C)::QAR2(D)
      • Refutation
        • K(a);S_FLIGHT,XS(C)
    • Try
      • Q(D);
      • Vars
        • K(a);OGATEB,P_SPINP(d),S_FLIGHT,XS(C)::QAB(D)
      • Refutation
        • P(d);XS(C)
    • Try
      • Q(D);
      • Vars
        • K(a);OGATEB,S_FLIGHT,XS(C)::QAB(D)
      • Refutation
        • P(d);XS(C)
    • Try
      • Q(D);
      • Vars
        • K(a);OGATEB,S_FLIGHT,XS(C)::QAB(D)
      • Refutation
        • P(d);XS(C)
    • Try
      • Q(D);
      • Vars
        • P(d);OGATE,SBLOCK,XS(C)::QAR2(D)
      • Refutation
        • K(a);P_SPINP(d),S_FLIGHT
    • Try
      • Q(D);
      • Vars
        • K(a);S_FLIGHT::S(B)
        • P(d);SBLOCK,XS(C)::QAR2(D)
      • Refutation
        • K(a);S_FLIGHT,XS(C)
    • Try
      • Q(D);
      • Vars
        • K(a);OGATEB,S_FLIGHT,XS(C)::QAB(D)
      • Refutation
        • P(d);XS(C)
  • Actual
    • Q(D);
    • Vars
      • K(a);OGATEB,S_FLIGHT,XS(C)::QAB(D)
      • K(a);S_FLIGHT::S(B)
      • P(d);SBLOCK,XS(C)::QAR2(D)
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