MESON Chess Problem Database

Problem Display
PID: 158494 (n7/3Q4/Rb1P1B1R/2k4P/1p2P3/1n1P4/8/5BK1 w - - 0 1)

Aksenov, Vitaly I

Praca, 1999

n7/3Q4/Rb1P1B1R/2k4P/1p2P3/1n1P4/8/5BK1

#2

10 + 5

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Ba5
      • 2.Qf5#
      • 2.Qc6#
    • 1...Ba7
      • 2.Qf5#
      • 2.Qc6#
    • 1...Bc7
      • 2.Qf5#
      • 2.Qc6#
    • 1...Bd8
      • 2.Qf5#
      • 2.Qc6#
    • 1...Sa1
      • 2.d4#
    • 1...Sc1
      • 2.d4#
    • 1...Sd2
      • 2.d4#
    • 1...Sa5
      • 2.d4#
  • Tries
    • 1.Ra5+?
      • 1...Sxa5
        • 2.d4#
      • 1...Bxa5!
  • Keys
    • 1.Qb7!
      • threat
        • 2.Qd5#
      • 1...Kb5+
        • 2.d4#
      • 1...Kxd6+
        • 2.Bd4#
      • 1...Sc7
        • 2.Qxb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 4
  • Sets
    • S(a);N_GUARD::P(C)
  • Tries
    • Try
      • R(F);CHECK
      • Vars
        • S(a);XR(F)::P(C)
      • Refutation
        • B(d);XR(F)
  • Actual
    • Q(J);
    • Threat
      • QAR1(J)
    • Vars
      • K(c);CHECK,P-FLIGHT,P_SPINB(d)::B(A)+P(C)
      • K(c);CHECK,P_SPINB(d),S_FLIGHT,XP(G)::R(I)+B(H)
      • S(e);N_GUARD::QAB1(J),XB(d)
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