MESON Chess Problem Database

Problem Display
PID: 10706 (8/8/8/1B6/1pR5/kb1Q4/8/1K6 w - - 0 1)

Zakhodyakin, Gleb Nikolaevich

7/8 Prize, Molodoi Leninets, 1967

8/8/8/1B6/1pR5/kb1Q4/8/1K6

#2

4 + 3

3296 Shakhmatny zadachi miniaturi 1987
3813 300 Sachmatu Uzdaviniu 1991

SOLUTION

  • SOUND
  • Tries
    • 1.Qc2?
      • threat
        • 2.Qc1#
        • 2.Qb2#
      • 1...Ba2+
        • 2.Qxa2#
      • 1...Bxc4
        • 2.Qa4#
        • 2.Qb2#
      • 1...Ba4
        • 2.Qxa4#
        • 2.Qa2#
        • 2.Qb2#
      • 1...Bxc2+!
    • 1.Qe2?
      • threat
        • 2.Qb2#
      • 1...Ba2+
        • 2.Qxa2#
      • 1...Bc2+!
    • 1.Qd2?
      • threat
        • 2.Qc1#
        • 2.Qxb4#
        • 2.Qb2#
      • 1...Ba2+
        • 2.Qxa2#
      • 1...Bxc4
        • 2.Qb2#
      • 1...Bd1
        • 2.Qxb4#
        • 2.Qa2#
        • 2.Qb2#
      • 1...Ba4
        • 2.Qxb4#
        • 2.Qa2#
        • 2.Qb2#
      • 1...Bc2+!
  • Keys
    • 1.Rc3!
      • 1...bxc3
        • 2.Qd6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(B);N_PINB(b)
      • Threat
        • DUALS(2)
      • Vars
        • B(b);CHECK,N_GUARD::QAR1(B),XB(b)
      • Refutation
        • B(b);CHECK,XQ(B)
    • Try
      • Q(B);N_PINB(b)
      • Threat
        • QAB1(B)
      • Vars
        • B(b);CHECK,N_GUARD::QAR1(B),XB(b)
      • Refutation
        • B(b);CHECK
    • Try
      • Q(B);N_PINB(b)
      • Threat
        • DUALS(3)
      • Vars
        • B(b);CHECK,N_GUARD::QAR1(B),XB(b)
        • B(b);XR(C)::QAB1(B)
      • Refutation
        • B(b);CHECK
  • Actual
    • R(C);
    • Vars
      • P(c);N_SPINB(b),OGATEB,XR(C)::QAB(B)
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