MESON Chess Problem Database

Problem Display
PID: 156990 (8/8/3b4/8/8/2N2K2/4p3/QN2k3 w - - 0 1)

Abdullayev, Suleyman

Mikolaev-225 JT, 2014

8/8/3b4/8/8/2N2K2/4p3/QN2k3

#2

4 + 3

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Kf1
      • 2.Sd2#
  • Tries
    • 1.Qb2?
      • threat
        • 2.Qc1#
        • 2.Qxe2#
      • 1...Ba3
        • 2.Qxe2#
      • 1...Bf4
        • 2.Qxe2#
      • 1...Kf1!
    • 1.Qa7?
      • threat
        • 2.Qg1#
        • 2.Qf2#
      • 1...Kf1
        • 2.Qf2#
      • 1...Bh2
        • 2.Qf2#
      • 1...Bg3
        • 2.Qg1#
      • 1...Bc5!
  • Keys
    • 1.Se4!
      • threat
        • 2.Sbd2#
        • 2.Sa3#
        • 2.Sbc3#
      • 1...Kd1
        • 2.Sa3#
      • 1...Kf1
        • 2.Sbd2#
      • 1...Ba3
        • 2.Sxa3#
      • 1...Bf4
        • 2.Sbd2#
      • 1...Be5
        • 2.Sbc3#

This is a version of 157904

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • K(a);P-FLIGHT::QAR(A)+S(B),DCHECK
  • Tries
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • B(c);::QAR1(A),XP(b)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • K(a);P-FLIGHT::QAR1(A)
        • B(c);::QAB1(A)
        • B(c);::QAR2(A)
      • Refutation
        • B(c);
  • Actual
    • S(C);
    • Threat
      • DUALS(3)
    • 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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