MESON Chess Problem Database

Problem Display
PID: 164493 (8/5N2/1K1N4/1p1k4/6Q1/8/6b1/8 w - - 0 1)

Antipov, Viacheslav Pavlovich

Schach-WW, 1998

8/5N2/1K1N4/1p1k4/6Q1/8/6b1/8

#2

4 + 3

15148 Sadier Collection 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Bf1
      • 2.Qe4#
    • 1...Bh3
      • 2.Qe4#
    • 1...Be4
      • 2.Qxe4#
    • 1...b4
      • 2.Qc4#
  • Tries
    • 1.Kxb5?
      • threat
        • 2.Qc4#
      • 1...Be4
        • 2.Qxe4#
      • 1...Bf1+!
    • 1.Qxg2+?
      • 1...Kd4
        • 2.Qd2#
      • 1...Ke6!
    • 1.Qg5+?
      • 1...Kd4
        • 2.Qd2#
      • 1...Ke6!
  • Keys
    • 1.Qe2!
      • threat
        • 2.Qe5#
      • 1...Kd4
        • 2.Qd2#
      • 1...Be4
        • 2.Qxe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 3
  • Sets
    • B(a);N_GUARD::QAB1(A)
    • B(a);N_GUARD::QAB1(A),XB(a)
    • P(b);N_GUARD::QAB1(A)
  • Tries
    • Try
      • K(B);P-FLIGHT,XP(b)
      • Threat
        • QAB1(A)
      • Vars
        • B(a);N_GUARD::QAB1(A),XB(a)
      • Refutation
        • B(a);CHECK
    • Try
      • Q(A);CHECK,XB(a)
      • Vars
        • K(c);P-FLIGHT::QAR2(A)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(c);P-FLIGHT::QAR2(A)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • Q(A);
    • Threat
      • QAR1(A)
    • Vars
      • K(c);P-FLIGHT::QAR2(A)
      • B(a);N_GUARD::QAB1(A),XB(a)
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