MESON Chess Problem Database

Problem Display
PID: 160086 (8/8/8/8/8/8/P7/rkBQK3 w - - 0 1)

Antipov, Viacheslav Pavlovich

Sa ogneupory, 1987

8/8/8/8/8/8/P7/rkBQK3

#2

4 + 2

15148 Sadier Collection 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Kxa2
      • 2.Qc2#
    • 1...Rxa2
      • 2.Ba3#
  • Tries
    • 1.Kd2?
      • threat
        • 2.Qc2#
        • 2.Qb3#
      • 1...Kxa2
        • 2.Qc2#
      • 1...Rxa2+!
    • 1.Ke2?
      • 1...Kxa2
        • 2.Qc2#
      • 1...Rxa2+!
    • 1.Kf2?
      • 1...Kxa2
        • 2.Qc2#
      • 1...Rxa2+!
    • 1.Qd3+?
      • 1...Kxa2
        • 2.Qc2#
      • 1...Kxc1!
  • Keys
    • 1.Kf1!
      • 1...Kxa2
        • 2.Qc2#
      • 1...Rxa2
        • 2.Ba3#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(b);S_FLIGHT,XP(D)::QAR2(B)
    • R(a);SBLOCK,XP(D)::QAR(B)+B(A)
  • Tries
    • Try
      • K(C);S_FLIGHT
      • Threat
        • DUALS(2)
      • Vars
        • K(b);S_FLIGHT,XP(D)::QAR2(B)
      • Refutation
        • R(a);CHECK,XP(D)
    • Try
      • K(C);P-FLIGHT
      • Vars
        • K(b);S_FLIGHT,XP(D)::QAR2(B)
      • Refutation
        • R(a);CHECK,XP(D)
    • Try
      • K(C);S_FLIGHT
      • Vars
        • K(b);S_FLIGHT,XP(D)::QAR2(B)
      • Refutation
        • R(a);CHECK,XP(D)
    • Try
      • Q(B);CHECK
      • Vars
        • K(b);P_PINB(A),S_FLIGHT,XP(D)::QAR2(B)
      • Refutation
        • K(b);P-FLIGHT,XB(A)
  • Actual
    • K(C);P-FLIGHT
    • Vars
      • K(b);S_FLIGHT,XP(D)::QAR2(B)
      • R(a);SBLOCK,XP(D)::QAR(B)+B(A)
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