MESON Chess Problem Database

Problem Display
PID: 214763 (4KN2/8/5k2/2p5/2P1P1pR/3Bp1rp/1R2P2Q/B7 w - - 0 1)

Pierce, James

The Field, 1877

4KN2/8/5k2/2p5/2P1P1pR/3Bp1rp/1R2P2Q/B7

#2

10 + 6

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Rxg4?
      • threat
        • 2.Rb1#
        • 2.Ra2#
        • 2.Rc2#
        • 2.Rd2#
        • 2.Rb3#
        • 2.Rb4#
        • 2.Rb5#
        • 2.Rb6#
        • 2.Rb7#
        • 2.Rb8#
      • 1...Ke5
        • 2.Rb6#
      • 1...Rg1
        • 2.Rb1#
        • 2.Rb6#
        • 2.Qf4#
        • 2.Qd6#
        • 2.e5#
      • 1...Rxg4!
    • 1.Rh5?
      • threat
        • 2.Rb1#
        • 2.Ra2#
        • 2.Rc2#
        • 2.Rd2#
        • 2.Rb3#
        • 2.Rb4#
        • 2.Rb5#
        • 2.Rb6#
        • 2.Rb7#
        • 2.Rb8#
      • 1...Rg1
        • 2.Rb1#
        • 2.Rb6#
        • 2.Qe5#
      • 1...Kg7!
  • Keys
    • 1.Se6!
      • 1...Ke5
        • 2.Rb6#
      • 1...Kxe6
        • 2.Rb6#
      • 1...Kg6
        • 2.e5#
      • 1...Rg1
        • 2.Rh6#
      • 1...Rg2
        • 2.Rh6#
      • 1...Rf3
        • 2.Rh6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(H);XP(d)
      • Threat
        • DUALS(10)
      • Vars
        • K(f);P_SPINR(b),S_FLIGHT::B(A)+R(B)
      • Refutation
        • R(b);XR(H)
    • Try
      • R(H);
      • Threat
        • DUALS(10)
      • Refutation
        • K(f);S_FLIGHT
  • Actual
    • S(J);
    • Vars
      • K(f);P_SPINR(b),S_FLIGHT::B(A)+R(B)
      • K(f);P-FLIGHT,XS(J)::R(B)
      • K(f);P-FLIGHT::B(E)+P(G)
      • R(b);::R(H)
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