MESON Chess Problem Database

Problem Display
PID: 81325 (8/p2p4/4R2Q/3k3K/R7/8/8/8 w - - 0 1)

Azhusin, Aleksandr Aleksandrovich

Radianske slovo, 1972

8/p2p4/4R2Q/3k3K/R7/8/8/8

#2

4 + 3

56 The Problemist 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Rb6?
      • threat
        • 2.Rb5#
        • 2.Qg5#
        • 2.Qd6#
      • 1...Kc5
        • 2.Qd6#
      • 1...Ke5
        • 2.Qg5#
      • 1...a6
        • 2.Qg5#
        • 2.Qd6#
      • 1...d6
        • 2.Qxd6#
      • 1...axb6!
    • 1.Rc6?
      • threat
        • 2.Qd6#
      • 1...Ke5
        • 2.Qg5#
      • 1...d6
        • 2.Qxd6#
      • 1...dxc6!
    • 1.Rd6+?
      • 1...Ke5
        • 2.Qf4#
        • 2.Qf6#
      • 1...Kc5!
    • 1.Qd2+?
      • 1...Kc5
        • 2.Qa5#
      • 1...Kxe6!
  • Keys
    • 1.Rea6!
      • threat
        • 2.R6a5#
        • 2.Qg5#
        • 2.Qd6#
      • 1...Kc5
        • 2.R6a5#
      • 1...Ke5
        • 2.Qg5#
      • 1...d6
        • 2.Qxd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(C);
      • Threat
        • DUALS(3)
      • Vars
        • K(a);P-FLIGHT::QAB1(D)
        • K(a);P-FLIGHT::QAR2(D)
        • P(c);::QAR1(D),XP(c)
      • Refutation
        • P(b);XR(C)
    • Try
      • R(C);
      • Threat
        • QAR1(D)
      • Vars
        • K(a);P-FLIGHT::QAR2(D)
        • P(c);::QAR1(D),XP(c)
      • Refutation
        • P(c);XR(C)
    • Try
      • R(C);CHECK
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(D);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR2(D)
      • Refutation
        • K(a);S_FLIGHT,XR(C)
  • Actual
    • R(C);
    • Threat
      • DUALS(3)
    • Vars
      • K(a);P-FLIGHT::R(C)
      • K(a);P-FLIGHT::QAR2(D)
      • P(c);::QAR1(D),XP(c)
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