MESON Chess Problem Database

Problem Display
PID: 215297 (K2br3/1Nk1pb1Q/p1N2R2/qp6/1p4B1/8/3R4/3r2B1 w - - 0 1)

Zabirokhin, Piotr

Zadachi i Etyudi, 1999

K2br3/1Nk1pb1Q/p1N2R2/qp6/1p4B1/8/3R4/3r2B1

#2

8 + 10

SOLUTION

  • SOUND
  • Tries
    • 1.Scxa5?
      • threat
        • 2.Bb6#
        • 2.Rc6#
      • 1...Rxg1
        • 2.Rc6#
      • 1...exf6
        • 2.Rc2#
      • 1...e6
        • 2.Qc2#
      • 1...Rc1
        • 2.Bb6#
      • 1...Bd5
        • 2.Bh2#
        • 2.Bb6#
      • 1...Be6!
    • 1.Rd7+?
      • 1...Kc8
        • 2.Sa7#
      • 1...Rxd7!
  • Keys
    • 1.Sa7!
      • threat
        • 2.Rc6#
      • 1...exf6
        • 2.Rc2#
      • 1...Rc1
        • 2.Rd7#
      • 1...Qb6
        • 2.Bxb6#
      • 1...Bd5
        • 2.Bh2#
      • 1...Be6
        • 2.Qh2#
      • 1...e6
        • 2.Qc2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);XQ(c)
      • Threat
        • DUALS(2)
      • Vars
        • R(a);XB(A)::R1(E)
        • P(g);P_SPINB(h),XR(E)::R(B)
        • P(g);P_SPINB(h)::QAR(G)
        • R(a);::B(A)
      • Refutation
        • B(h);P_SPINP(g)
    • Try
      • R(B);CHECK
      • Vars
        • K(f);P-FLIGHT::S(D)
      • Refutation
        • R(a);XR(B)
  • Actual
    • S(D);
    • Threat
      • R1(E)
    • Vars
      • P(g);P_SPINB(h),XR(E)::R(B)
      • R(a);N_GUARD::R1(B)
      • Q(c);N_GUARD::B(A),XQ(c)
      • B(h);P_PINS(F),P_SPINP(g)::B(A)
      • B(h);P_SPINP(g)::QAB(G)
      • P(g);P_SPINB(h)::QAR(G)
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