MESON Chess Problem Database

Problem Display
PID: 160719 (8/8/1N1p4/N3p3/4k3/8/5Q2/1K6 w - - 0 1)

Antipin, Ivan Ivanovich

Sem Shakhmatnikh not, 2015

8/8/1N1p4/N3p3/4k3/8/5Q2/1K6

#2

4 + 3

15148 Sadier Collection 2017

SOLUTION

  • SOUND
  • Tries
    • 1.Sac4?
      • 1...Kd3
        • 2.Qe3#
      • 1...d5!
    • 1.Sb7?
      • 1...d5
        • 2.Sc5#
      • 1...Kd3!
    • 1.Sd5?
      • 1...Kd3
        • 2.Qe3#
      • 1...Kxd5!
    • 1.Qf3+?
      • 1...Kd4
        • 2.Sb3#
      • 1...Kxf3!
  • Keys
    • 1.Sb3!
      • 1...Kd3
        • 2.Qf3#
      • 1...d5
        • 2.Sc5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);
      • Vars
        • K(a);S_FLIGHT::QAR1(B)
      • Refutation
        • P(c);
    • Try
      • S(C);
      • Vars
        • P(c);N_GUARD::S(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(D);
      • Vars
        • K(a);S_FLIGHT::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT,XS(D)
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);P-FLIGHT::S(C)
      • Refutation
        • K(a);S_FLIGHT,XQ(B)
  • Actual
    • S(C);
    • Vars
      • K(a);S_FLIGHT::QAR2(B)
      • P(c);N_GUARD::S(C)
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