MESON Chess Problem Database

Problem Display
PID: 218606 (3RR3/1Q6/KP1rr3/4Pp2/3k1q2/2N2pN1/2Pp4/B7 w - - 0 1)

Anonymous

Charleston Sunday News, 1882

(First published on Sun May 28 1882)

3RR3/1Q6/KP1rr3/4Pp2/3k1q2/2N2pN1/2Pp4/B7

#2

10 + 7

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Ke3
      • 2.Sd1#
    • 1...Kxe5
      • 2.Qg7#
  • Tries
    • 1.Qd5+?
      • 1...Ke3
        • 2.Sd1#
      • 1...Rxd5!
    • 1.Qc6?
      • threat
        • 2.Sd1#
        • 2.Sd5#
      • 1...Ke3
        • 2.Sd1#
      • 1...Qxg3
        • 2.Sd1#
      • 1...d1Q
        • 2.Sxd1#
      • 1...d1S
        • 2.Sxd1#
      • 1...d1B
        • 2.Sxd1#
        • 2.Sd5#
      • 1...d1R
        • 2.Sxd1#
      • 1...Qe3
        • 2.Sce2#
        • 2.Sb5#
      • 1...Rd5
        • 2.Sd1#
        • 2.Sxd5#
      • 1...Kxe5!
  • Keys
    • 1.Kb5!
      • threat
        • 2.Sd1#
        • 2.Sd5#
      • 1...Qxe5+
        • 2.Sd5#
      • 1...Rd5+
        • 2.Sxd5#
      • 1...Rxe5+
        • 2.Sd5#
      • 1...Ke3
        • 2.Sd1#
      • 1...Kxe5
        • 2.Qg7#
      • 1...Qxg3
        • 2.Sd1#
      • 1...d1Q
        • 2.Sxd1#
      • 1...d1S
        • 2.Sxd1#
      • 1...d1B
        • 2.Sxd1#
        • 2.Sd5#
      • 1...d1R
        • 2.Sxd1#
      • 1...Qe3
        • 2.Sce2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • K(c);N_SPINR(f),S_FLIGHT::S(C)
    • K(c);N_SPINR(f),OGATEB,P_SPINR(g),S_FLIGHT,XP(E)::QAB(H)
  • Tries
    • Try
      • Q(H);CHECK,N_PINR(f)
      • Vars
        • K(c);S_FLIGHT::S(C)
      • Refutation
        • R(f);P_SPINR(f),XQ(H)
    • Try
      • Q(H);N_SPINP(G)
      • Threat
        • DUALS(2)
      • Vars
        • K(c);N_SPINR(f),S_FLIGHT::S(C)
        • Q(d);XS(D)::B(A)+S(C)
        • P(a);::B(A)+S(C),XQ(a)
        • P(a);::B(A)+S(C),XS(a)
        • P(a);::B(A)+S(C),XR(a)
      • Refutation
        • K(c);N_SPINR(f),P_SPINR(g),S_FLIGHT,XP(E)
  • Actual
    • K(F);N_SPINP(G),S_FLIGHT
    • Threat
      • DUALS(2)
    • Vars
      • Q(d);CHECK,SBLOCK,XP(E)::B(A)+S(C)
      • R(f);CHECK::B(A)+S(C),XR(f)
      • R(g);CHECK,XP(E)::B(A)+S(C)
      • K(c);N_SPINR(f),S_FLIGHT::S(C)
      • K(c);N_SPINR(f),OGATEB,P_SPINR(g),S_FLIGHT,XP(E)::QAB(H)
      • Q(d);XS(D)::B(A)+S(C)
      • P(a);::B(A)+S(C),XQ(a)
      • P(a);::B(A)+S(C),XS(a)
      • P(a);::B(A)+S(C),XR(a)
      • Q(d);SBLOCK::B(A)+S(C),DCHECK
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