MESON Chess Problem Database

Problem Display
PID: 159428 (4K2B/8/1P1P4/P2k1N1R/P6P/3Np1p1/P3BPP1/8 w - - 0 1)

Abdurahmanovic, Fadil

Mat, 1972

4K2B/8/1P1P4/P2k1N1R/P6P/3Np1p1/P3BPP1/8

#2

14 + 3

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Kc4
      • 2.Sxe3#
    • 1...Ke4
      • 2.Sxg3#
    • 1...Kc6
      • 2.Bf3#
    • 1...Ke6
      • 2.Sf4#
  • Tries
    • 1.Sd4+?
      • 1...Kc4
        • 2.Rc5#
      • 1...Ke4
        • 2.f3#
      • 1...Kxd6!
    • 1.Bf3+?
      • 1...Ke6
        • 2.Sf4#
        • 2.Sc5#
      • 1...Kc4!
    • 1.fxg3?
      • 1...Kc4
        • 2.Sxe3#
      • 1...Kc6
        • 2.Bf3#
      • 1...Ke6
        • 2.Sf4#
      • 1...Ke4!
    • 1.f3?
      • 1...Kc4
        • 2.Sxe3#
      • 1...Ke6
        • 2.Sf4#
      • 1...Kc6!
    • 1.f4?
      • 1...Kc4
        • 2.Sxe3#
      • 1...Ke4
        • 2.Sxg3#
      • 1...Kc6
        • 2.Bf3#
      • 1...Ke6!
  • Keys
    • 1.Se7+!
      • 1...Kc4
        • 2.Rc5#
      • 1...Ke4
        • 2.f3#
      • 1...Kxd6
        • 2.Rh6#
      • 1...Ke6
        • 2.Rh6#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 3
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • K(c);S_FLIGHT::S(I),XP(a)
    • K(c);S_FLIGHT::S(I),XP(b)
    • K(c);S_FLIGHT::B(B)
    • K(c);S_FLIGHT::S(E)
  • Tries
    • Try
      • S(I);CHECK
      • Vars
        • K(c);OGATE,S_FLIGHT::R1(J)
        • K(c);S_FLIGHT::P(C)
      • Refutation
        • K(c);P-FLIGHT,XP(L)
    • Try
      • B(B);CHECK
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • P(C);XP(b)
      • Vars
        • K(c);S_FLIGHT::S(I),XP(a)
        • K(c);S_FLIGHT::B(B)
        • K(c);S_FLIGHT::S(E)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • P(C);
      • Vars
        • K(c);S_FLIGHT::S(I),XP(a)
        • K(c);S_FLIGHT::S(E)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • P(C);
      • Vars
        • K(c);S_FLIGHT::S(I),XP(a)
        • K(c);S_FLIGHT::S(I),XP(b)
        • K(c);S_FLIGHT::B(B)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • S(I);CHECK
    • Vars
      • K(c);OGATE,S_FLIGHT::R1(J)
      • K(c);S_FLIGHT::P(C)
      • K(c);P-FLIGHT,XP(L)::R(J)
      • K(c);S_FLIGHT::R(J)
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