MESON Chess Problem Database

Problem Display
PID: 252874 (1n4RK/b4QB1/4p3/1B5p/1P3R2/1N2k1nq/4p1p1/r7 w - - 0 1)

Tyunin, Aleksandr Dmitrevich

Zadachi i Etyudi, 2005

1n4RK/b4QB1/4p3/1B5p/1P3R2/1N2k1nq/4p1p1/r7

#2

8 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Bd4
      • 2.Bxd4#
  • Keys
    • 1.Bh6!
      • threat
        • 2.Rd4#
        • 2.Rfg4#
        • 2.Rh4#
      • 1...Bd4+
        • 2.Rxd4#
      • 1...Qg4
        • 2.Rfxg4#
      • 1...Qf5
        • 2.Rxg3#
      • 1...Qh4
        • 2.Rxh4#
      • 1...Rf1
        • 2.Qxa7#
      • 1...Se4
        • 2.Rf3#
      • 1...Sf5
        • 2.Qxe6#
      • 1...h4
        • 2.Rd4#
        • 2.Rfg4#
        • 2.Rxh4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • B(i);N_GUARD,P_PINB(F)::B(F),XB(i)
  • Actual
    • B(F);
    • Threat
      • DUALS(3)
    • Vars
      • B(i);CHECK::B(F)+R(C),XB(i)
      • Q(f);::B(F)+R(C),XQ(f)
      • Q(f);N_GUARD::R(G),XS(e)
      • R(a);N_GUARD::QAB(E),XB(i)
      • S(e);SBLOCK::B(F)+R(C),DCHECK
      • S(e);N_GUARD,S_CUTQ(f)::QAR(E),XP(h)
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