MESON Chess Problem Database

Problem Display
PID: 81850 (1B6/4p2p/2N1P1B1/4R3/R1b2kNp/brp4P/3n2P1/1n5K w - - 0 1)

Rice, John Michael

The Problemist, 2008

1B6/4p2p/2N1P1B1/4R3/R1b2kNp/brp4P/3n2P1/1n5K

#2

10 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Kg3
      • 2.Re3#
    • 1...Rb4
      • 2.Rb5#
    • 1...Bc1
      • 2.Rb5#
    • 1...Bb2
      • 2.Rb5#
    • 1...Bb4
      • 2.Rc5#
    • 1...Se4
      • 2.Rf5#
  • Tries
    • 1.Rxc4+?
      • 1...Kg3
        • 2.Re3#
      • 1...Se4
        • 2.Rf5#
      • 1...Sxc4!
    • 1.g3+?
      • 1...Kf3
        • 2.Re3#
      • 1...Kxg3
        • 2.Re3#
      • 1...hxg3!
  • Keys
    • 1.Sd4!
      • threat
        • 2.Se2#
      • 1...Kg3
        • 2.Re3#
      • 1...Rb4
        • 2.Rb5#
      • 1...Bb4
        • 2.Rc5#
      • 1...Be2
        • 2.Sxe2#
      • 1...Se4
        • 2.Rf5#

This is a version of 81849

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • K(g);N_SPINB(f),S_FLIGHT::B(J)+R(F),DCHECK
    • R(d);N_SPINB(f),S_CUTB(c)::B(J)+R(F)
    • B(c);N_GUARD::B(J)+R(F)
    • B(c);N_SPINB(f),S_CUTR(d)::B(J)+R(F)
    • S(b);N_SPINB(f),SBLOCK::B(J)+R(F),DCHECK
  • Tries
    • Try
      • R(D);CHECK,XB(f)
      • Vars
        • K(g);S_FLIGHT::B(J)+R(F),DCHECK
        • S(b);P_SPINS(b)::B(J)+R(F),DCHECK
      • Refutation
        • S(b);XR(D)
    • Try
      • P(B);CHECK
      • Vars
        • K(g);N_SPINB(f),P-FLIGHT::R1(F)
        • K(g);N_SPINB(f),S_FLIGHT,XP(B)::B(J)+R(F),DCHECK
      • Refutation
        • P(h);XP(B)
  • Actual
    • S(G);N_PINB(f)
    • Threat
      • S(G)
    • Vars
      • K(g);S_FLIGHT::B(J)+R(F),DCHECK
      • R(d);S_CUTB(c)::B(J)+R(F)
      • B(c);S_CUTR(d)::B(J)+R(F)
      • B(f);::R(D)+S(G),DCHECK,XB(f)
      • S(b);SBLOCK::B(J)+R(F),DCHECK
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