MESON Chess Problem Database

Problem Display
PID: 164295 (8/8/8/8/8/K2p1Q2/2kN4/1R1b4 w - - 0 1)

Andreev, Aleksandr Grigorevich

Kuban segodniya, 1996

8/8/8/8/8/K2p1Q2/2kN4/1R1b4

#2

4 + 3

15148 Sadier Collection 2017

SOLUTION

  • SOUND
  • Tries
    • 1.Rb2+?
      • 1...Kc3
        • 2.Qf6#
      • 1...Kc1!
    • 1.Qb7?
      • threat
        • 2.Qb2#
      • 1...Kc3
        • 2.Qb2#
      • 1...Kxd2!
  • Keys
    • 1.Sb3!
      • threat
        • 2.Rc1#
      • 1...Kxb1
        • 2.Qxd1#
      • 1...Kc3
        • 2.Qc6#
      • 1...d2
        • 2.Rb2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(A);CHECK
      • Vars
        • K(b);P-FLIGHT,P_SPINP(c)::QAB(D)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(D);
      • Threat
        • QAR1(D)
      • Vars
        • K(b);P-FLIGHT::QAB1(D)
      • Refutation
        • K(b);P-FLIGHT,XS(B)
  • Actual
    • S(B);
    • Threat
      • R1(A)
    • Vars
      • K(b);S_FLIGHT,XR(A)::QAR2(D),XB(a)
      • K(b);P-FLIGHT,P_SPINP(c)::QAR(D)
      • P(c);::R1(A)
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