MESON Chess Problem Database

Problem Display
PID: 2778 (BQ1rbN2/B2pK3/rp2p3/1R2p3/P2k3p/1P1p1Pb1/1p4N1/1q6 w - - 0 1)

Warner, James Cooper

Source?, 0000

BQ1rbN2/B2pK3/rp2p3/1R2p3/P2k3p/1P1p1Pb1/1p4N1/1q6

#2

10 + 13

1679 American Chess Nuts 1868

SOLUTION

  • SOUND
  • Sets
    • 1...Be1
      • 2.Qxe5#
    • 1...Bf2
      • 2.Qxe5#
  • Tries
    • 1.Rb4+?
      • 1...Kc5
        • 2.Rc4#
        • 2.Qd6#
      • 1...Kc3!
  • Keys
    • 1.Rc5!
      • threat
        • 2.Rc4#
        • 2.Qd6#
      • 1...Kxc5
        • 2.Qd6#
      • 1...Rxa4
        • 2.Qd6#
      • 1...Rxb8
        • 2.Rc4#
      • 1...bxc5
        • 2.Qb4#
      • 1...d2
        • 2.Qd6#
      • 1...Qc2
        • 2.Qd6#
      • 1...Qc1
        • 2.Qd6#
      • 1...Rc8
        • 2.Qd6#
      • 1...e4
        • 2.Rc4#
      • 1...b5
        • 2.Rc4#
      • 1...d5
        • 2.Sxe6#
      • 1...d6
        • 2.Sxe6#
        • 2.Rc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 11
    • REMOVED MATES = 2
  • Sets
    • B(d);N_GUARD::QAB1(I),XP(g)
  • Tries
    • Try
      • R(E);CHECK
      • Refutation
        • K(e);N_SPINP(i),S_FLIGHT
  • Actual
    • R(E);N_PINP(i)
    • Threat
      • DUALS(2)
    • Vars
      • K(e);P_SPINP(i),S_FLIGHT,XR(E)::QAB1(I)
      • R(h);XP(D)::QAR2(I)
      • R(l);XQ(I)::R1(E)
      • P(i);OGATE,P_SPINP(i),XR(E)::QAR2(I)
      • P(c);::QAR2(I)
      • Q(a);::QAR2(I)
      • R(l);::QAR2(I)
      • P(g);::R1(E)
      • P(i);::B(F)+R(E),DCHECK
      • P(k);N_GUARD::S(J),XP(j)
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