MESON Chess Problem Database

Problem Display
PID: 160721 (8/5Kp1/8/2N2k2/6p1/4Q3/8/b7 w - - 0 1)

Antipin, Ivan Ivanovich

Sem Shakhmatnikh not, 2015

8/5Kp1/8/2N2k2/6p1/4Q3/8/b7

#2

3 + 4

15148 Sadier Collection 2017

SOLUTION

  • SOUND
  • Sets
    • 1...g5
      • 2.Qe4#
  • Tries
    • 1.Se6?
      • threat
        • 2.Qf4#
      • 1...Be5
        • 2.Qd3#
      • 1...g5!
  • Keys
    • 1.Sd3!
      • threat
        • 2.Qf4#
      • 1...Be5
        • 2.Qxe5#
      • 1...g5
        • 2.Qe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • P(d);SBLOCK::QAB1(A)
  • Tries
    • Try
      • S(B);
      • Threat
        • QAR1(A)
      • Vars
        • B(a);SBLOCK::QAB(A)
      • Refutation
        • P(d);
  • Actual
    • S(B);
    • Threat
      • QAR1(A)
    • Vars
      • B(a);N_GUARD::QAR1(A),XB(a)
      • P(d);SBLOCK::QAB1(A)
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