MESON Chess Problem Database

Problem Display
PID: 157997 (8/8/3N4/8/K5B1/2pk2n1/5Q2/8 w - - 0 1)

Aliovsadzade, Rauf Gadzhiaga ogli

Seven Chess Notes, 2014

8/8/3N4/8/K5B1/2pk2n1/5Q2/8

#2

4 + 3

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Sf1
      • 2.Bf5#
    • 1...Sh1
      • 2.Bf5#
    • 1...Sf5
      • 2.Bxf5#
    • 1...Sh5
      • 2.Bf5#
  • Tries
    • 1.Sf5?
      • 1...Kc4
        • 2.Qd4#
      • 1...Ke4
        • 2.Qd4#
      • 1...Se2
        • 2.Qxe2#
      • 1...c2
        • 2.Qd4#
      • 1...Se4
        • 2.Qe2#
      • 1...Sf1
        • 2.Qe2#
      • 1...Sh1
        • 2.Qe2#
      • 1...Sh5
        • 2.Qe2#
      • 1...Sxf5!
    • 1.Bf5+?
      • 1...Se4
        • 2.Bxe4#
      • 1...Sxf5!
  • Keys
    • 1.Sb5!
      • 1...Kc4
        • 2.Qd4#
      • 1...Ke4
        • 2.Qd4#
      • 1...Se2
        • 2.Qxe2#
      • 1...Se4
        • 2.Qe2#
      • 1...Sf1
        • 2.Qe2#
      • 1...Sh1
        • 2.Qe2#
      • 1...Sf5
        • 2.Qe2#
      • 1...Sh5
        • 2.Qe2#
      • 1...c2
        • 2.Qd4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 4
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • S(c);N_GUARD::B(C)
    • S(c);N_GUARD::B(C),XS(c)
  • Tries
    • Try
      • S(D);
      • Vars
        • K(b);S_FLIGHT::QAR1(A)
        • S(c);N_GUARD::QAB1(A),XS(c)
        • P(a);SBLOCK::QAR1(A)
        • S(c);N_GUARD::QAB1(A)
      • Refutation
        • S(c);XS(D)
    • Try
      • B(C);CHECK
      • Vars
        • S(c);N_GUARD,P_SPINS(c)::B(C),XS(c)
      • Refutation
        • S(c);XB(C)
  • Actual
    • S(D);
    • Vars
      • K(b);S_FLIGHT::QAR1(A)
      • S(c);N_GUARD::QAB1(A),XS(c)
      • S(c);N_GUARD::QAB1(A)
      • P(a);SBLOCK::QAR1(A)
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