MESON Chess Problem Database

Problem Display
PID: 157904 (8/8/4b3/8/8/3N2K1/5p2/Q1N2k2 w - - 0 1)

Abdullayev, Suleyman

Kudesnik, 2011

8/8/4b3/8/8/3N2K1/5p2/Q1N2k2

#2

4 + 3

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Kg1
      • 2.Se2#
  • Tries
    • 1.Qa8?
      • threat
        • 2.Qh1#
        • 2.Qg2#
      • 1...Kg1
        • 2.Qg2#
      • 1...Bh3
        • 2.Qh1#
      • 1...Bd5!
  • Keys
    • 1.Sf4!
      • threat
        • 2.Sa2#
        • 2.Sce2#
        • 2.Sb3#
        • 2.Scd3#
      • 1...Ke1
        • 2.Sb3#
      • 1...Kg1
        • 2.Sce2#
      • 1...Ba2
        • 2.Sxa2#
      • 1...Bb3
        • 2.Sxb3#
      • 1...Bg4
        • 2.Sce2#
      • 1...Bf5
        • 2.Scd3#

There are these versions: 156990

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • K(a);P-FLIGHT::QAR(A)+S(B),DCHECK
  • Tries
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • K(a);P-FLIGHT::QAR1(A)
        • B(c);::QAR2(A)
      • Refutation
        • B(c);
  • Actual
    • S(C);
    • Threat
      • DUALS(4)
    • Vars
      • K(a);P-FLIGHT::QAR(A)+S(B)
      • K(a);P-FLIGHT::QAR(A)+S(B),DCHECK
      • B(c);::QAR(A)+S(B),XB(c)
      • B(c);::QAR(A)+S(B)
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