MESON Chess Problem Database

Problem Display
PID: 214640 (nK1N1b1r/R1n1kP1N/1pP5/1P2p2Q/4p3/8/3B4/8 w - - 0 1)

Perry, CA

Chicago Tribune, 1878

nK1N1b1r/R1n1kP1N/1pP5/1P2p2Q/4p3/8/3B4/8

#2

9 + 8

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Kc8?
      • threat
        • 2.Bb4#
        • 2.Qxe5#
      • 1...Rxh7
        • 2.Qxe5#
      • 1...Bg7
        • 2.Bb4#
      • 1...Kd6!
  • Keys
    • 1.Qd1!
      • threat
        • 2.Bb4#
        • 2.Bg5#
      • 1...Kd6
        • 2.Bb4#
      • 1...Kxd8
        • 2.Bg5#
      • 1...Rxh7
        • 2.Bg5#
      • 1...Rg8
        • 2.Bb4#
      • 1...Bh6
        • 2.Bb4#
      • 1...Bg7
        • 2.Bb4#
      • 1...e3
        • 2.Bb4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(H);P-FLIGHT
      • Threat
        • DUALS(2)
      • Vars
        • R(h);XS(G)::QAR2(C),XP(b)
        • B(g);P_PINS(I)::B(A)
      • Refutation
        • K(e);N_SPINS(d),S_FLIGHT
  • Actual
    • Q(C);
    • Threat
      • DUALS(2)
    • Vars
      • K(e);N_SPINS(d),S_FLIGHT::QAR(C)+B(A),DCHECK
      • K(e);N_SPINS(d),S_FLIGHT,XS(I)::QAR(C)+B(A),DCHECK
      • R(h);XS(G)::B(A)
      • R(h);::B(A)
      • B(g);P_PINS(I)::B(A)
      • P(a);::B(A)
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