MESON Chess Problem Database

Problem Display
PID: 80040 (8/R7/3Q4/1k2r3/4b3/8/N7/K7 w - - 0 1)

Antipov, Viacheslav Pavlovich

Novgorodskaya pravda, 1983

8/R7/3Q4/1k2r3/4b3/8/N7/K7

#2

4 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...Rc5
      • 2.Qa6#
    • 1...Bc6
      • 2.Qb4#
  • Tries
    • 1.Rb7+?
      • 1...Ka4
        • 2.Qb4#
      • 1...Kc4
        • 2.Rb4#
      • 1...Ka5
        • 2.Qa3#
      • 1...Bxb7!
  • Keys
    • 1.Ra4!
      • threat
        • 2.Sc3#
      • 1...Kxa4
        • 2.Qb4#
      • 1...Bc6
        • 2.Qb4#
      • 1...Rc5
        • 2.Qa6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • R(c);SBLOCK::QAB1(C)
    • B(a);SBLOCK::QAR1(C)
  • Tries
    • Try
      • R(D);CHECK
      • Vars
        • K(b);S_FLIGHT::QAR1(C)
        • K(b);OGATE,S_FLIGHT::R1(D)
        • K(b);P-FLIGHT::QAR2(C)
      • Refutation
        • B(a);XR(D)
  • Actual
    • R(D);
    • Threat
      • S(B)
    • Vars
      • K(b);S_FLIGHT,XR(D)::QAR1(C)
      • B(a);SBLOCK::QAR1(C)
      • R(c);SBLOCK::QAB1(C)
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