MESON Chess Problem Database

Problem Display
PID: 171320 (8/8/2K5/1p2N3/bk6/3Q4/3R4/8 w - - 0 1)

Antipov, Viacheslav Pavlovich

Smena, 1994

8/8/2K5/1p2N3/bk6/3Q4/3R4/8

#2

4 + 3

6490 yacpdb 2018
5454 Near Snap 2019

SOLUTION

  • SOUND
  • Tries
    • 1.Qd4+?
      • 1...Ka3
        • 2.Qb2#
      • 1...Kb3
        • 2.Qb2#
      • 1...Ka5!
  • Keys
    • 1.Ra2!
      • 1...Ka5
        • 2.Qxb5#
      • 1...Bd1
        • 2.Qa3#
      • 1...Bc2
        • 2.Qa3#
      • 1...Bb3
        • 2.Qd2#

This anticipates 172383(1997)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(B);CHECK
      • Vars
        • K(b);S_FLIGHT::QAB1(B)
        • K(b);P-FLIGHT::QAR1(B)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • R(A);
    • Vars
      • K(b);P_SPINB(a),S_FLIGHT::QAR1(B),XP(c)
      • B(a);::QAB1(B)
      • B(a);SBLOCK::QAB(B)
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