MESON Chess Problem Database

Problem Display
PID: 161469 (8/8/3K1QBk/2Bb4/8/7r/8/8 w - - 0 1)

Andreev, Aleksandr Grigorevich

Bankovskaya gazeta, 1996

8/8/3K1QBk/2Bb4/8/7r/8/8

#2

4 + 3

15148 Sadier Collection 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Rh1
      • 2.Be3#
    • 1...Rh2
      • 2.Be3#
    • 1...Re3
      • 2.Bxe3#
    • 1...Rh5
      • 2.Bb1#
      • 2.Bc2#
      • 2.Bd3#
      • 2.Be4#
      • 2.Bf5#
    • 1...Bf3
      • 2.Be3#
  • Tries
    • 1.Kxd5?
      • threat
        • 2.Bf8#
      • 1...Rh5+
        • 2.Bf5#
      • 1...Rd3+!
  • Keys
    • 1.Ke5!
      • threat
        • 2.Bf8#
      • 1...Re3+
        • 2.Bxe3#
      • 1...Rh5+
        • 2.Bf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 3
  • Sets
    • R(a);N_GUARD::B(A)
    • R(a);N_GUARD::B(A),XR(a)
    • B(b);S_CUTR(a)::B(A)
  • Tries
    • Try
      • K(B);P-FLIGHT,XB(b)
      • Threat
        • B(A)
      • Vars
        • R(a);CHECK,SBLOCK::QAR(C)+B(D)
      • Refutation
        • R(a);CHECK
  • Actual
    • K(B);S_FLIGHT
    • Threat
      • B(A)
    • Vars
      • R(a);CHECK,N_GUARD::B(A),XR(a)
      • R(a);CHECK,SBLOCK::QAR(C)+B(D)
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