MESON Chess Problem Database

Problem Display
PID: 175079 (8/8/8/8/8/1n3p2/2N5/Q1NbBk1K w - - 0 1)

Stritecky Blazej

Nove parizske mody, 1902

8/8/8/8/8/1n3p2/2N5/Q1NbBk1K

#2

5 + 4

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Qd4?
      • threat
        • 2.Qg1#
        • 2.Qf2#
      • 1...Sxc1
        • 2.Qf2#
      • 1...f2
        • 2.Qxf2#
      • 1...Sxd4!
    • 1.Qg7?
      • threat
        • 2.Qg1#
      • 1...f2
        • 2.Qg2#
      • 1...Sxc1!
  • Keys
    • 1.Se2!
      • threat
        • 2.Sg3#
      • 1...Kxe2
        • 2.Qa6#
      • 1...Bxe2
        • 2.Se3#
      • 1...fxe2
        • 2.Qf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • S(c);XS(B)::QAR1(A)
        • P(d);::QAR1(A),XP(d)
      • Refutation
        • S(c);XQ(A)
    • Try
      • Q(A);
      • Threat
        • QAR1(A)
      • Vars
        • P(d);N_GUARD::QAB1(A)
      • Refutation
        • S(c);XS(B)
  • Actual
    • S(B);
    • Threat
      • S(B)
    • Vars
      • K(b);OGATEB,S_FLIGHT,XS(B)::QAB(A)
      • B(a);SBLOCK,XS(B)::S(E)
      • P(d);OGATEB,SBLOCK,XS(B)::QAR(A)
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