MESON Chess Problem Database

Problem Display
PID: 272582 (8/3R2p1/2P1kpr1/2B1npb1/5P2/4R3/b1B2Q2/4K3 w - - 0 1)

Pankratiev, Aleksandr Nikolaevich

Variantim, 2023

8/3R2p1/2P1kpr1/2B1npb1/5P2/4R3/b1B2Q2/4K3

#2

8 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Bb1
      • 2.Bb3#
    • 1...Bb3
      • 2.Bxb3#
    • 1...Bd5
      • 2.Re7#
  • Tries
    • 1.Qd2?
      • threat
        • 2.Re7#
        • 2.Qd6#
      • 1...Bd5
        • 2.Re7#
        • 2.Qxd5#
      • 1...Bh4+!
  • Keys
    • 1.Be4!
      • threat
        • 2.Re7#
      • 1...Sd3+
        • 2.Bxd3#
      • 1...Sf3+
        • 2.Bxf3#
      • 1...Sxc6
        • 2.Bxc6#
      • 1...Sxd7
        • 2.Qxa2#
      • 1...fxe4
        • 2.f5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 3
  • Sets
    • B(a);N_GUARD::B(B)
    • B(a);N_GUARD::B(B),XB(a)
    • B(a);SBLOCK::R1(H)
  • Tries
    • Try
      • Q(C);
      • Threat
        • DUALS(2)
      • Refutation
        • B(d);CHECK
  • Actual
    • B(B);N_PINS(b)
    • Threat
      • R1(H)
    • Vars
      • S(b);CHECK,OGATEB::R(D)+B(B),XS(b)
      • S(b);OGATE,XP(G)::R(D)+B(B),XS(b)
      • S(b);N_GUARD,XR(H)::QAB(C),XB(a)
      • P(c);OGATE,XB(B)::P(E)
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