MESON Chess Problem Database

Problem Display
PID: 262759 (8/8/2qp4/4p3/4Q1PK/3Pp2N/4Rp1k/1r1R3N w - - 0 1)

Abdullayev, Suleyman

Comm., SuperProblem, 2013

8/8/2qp4/4p3/4Q1PK/3Pp2N/4Rp1k/1r1R3N

#2

8 + 7

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Tries
    • 1.Qf4+?
      • 1...Kg2
        • 2.Qg3#
      • 1...exf4!
    • 1.Qxe5+?
      • 1...Kg2
        • 2.Qg3#
      • 1...dxe5!
  • Keys
    • 1.S1xf2!
      • threat
        • 2.Sh1#
      • 1...Qxe4
        • 2.Sxe4#
      • 1...exf2
        • 2.Rxf2#
      • 1...Qc2
        • 2.Qh1#
      • 1...Rb2
        • 2.Rh1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(F);CHECK
      • Vars
        • K(c);P-FLIGHT::QAR1(F)
      • Refutation
        • P(e);XQ(F)
    • Try
      • Q(F);CHECK,XP(e)
      • Vars
        • K(c);P-FLIGHT::QAR1(F)
      • Refutation
        • P(g);XQ(F)
  • Actual
    • S(B);XP(b)
    • Threat
      • R(C)+S(B)
    • Vars
      • Q(f);P_PINP(G),XQ(F)::R(C)+S(B),XQ(f)
      • P(d);OGATE,P_SPINP(d),XS(B)::R(C),XP(d)
      • Q(f);N_GUARD::QAR1(F)
      • R(a);N_GUARD::R1(A)
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