MESON Chess Problem Database

Problem Display
PID: 153484 (8/2K5/2R1Q3/1k1P4/Rn1P4/1b2P3/2B5/8 w - - 0 1)

Betts, Frederick Charles

Hull Times, 0000

8/2K5/2R1Q3/1k1P4/Rn1P4/1b2P3/2B5/8

#2

8 + 3

15351 SCPF/BCPS Black Books 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Ba2
      • 2.Rc5#
    • 1...Bxa4
      • 2.Rc5#
    • 1...Bc4
      • 2.Rc5#
      • 2.Rb6#
    • 1...Bxd5
      • 2.Rc5#
    • 1...Sxc6
      • 2.Qxc6#
  • Tries
    • 1.Bxb3?
      • threat
        • 2.Rc5#
        • 2.Rb6#
      • 1...Sxd5+
        • 2.Qxd5#
      • 1...Sxc6
        • 2.Qxc6#
      • 1...Sd3
        • 2.Rb6#
      • 1...Sa6+!
    • 1.Rb6+?
      • 1...Kc4
        • 2.Qc6#
      • 1...Kxa4!
  • Keys
    • 1.Rc4!
      • threat
        • 2.Rcxb4#
      • 1...Sxd5+
        • 2.Qxd5#
      • 1...Sa6+
        • 2.Qxa6#
      • 1...Kxa4
        • 2.Qa6#
      • 1...Kxc4
        • 2.Qc6#
      • 1...Bxa4
        • 2.Rc5#
      • 1...Bxc4
        • 2.Qb6#
      • 1...Sxc2
        • 2.Qd7#
        • 2.Qa6#
        • 2.Qb6#
        • 2.Qc6#
        • 2.Qe8#
      • 1...Sa2
        • 2.Qd7#
        • 2.Qa6#
        • 2.Qb6#
        • 2.Qc6#
        • 2.Qe8#
      • 1...Sd3
        • 2.Qd7#
        • 2.Qa6#
        • 2.Qb6#
        • 2.Qc6#
        • 2.Qe8#
      • 1...Sc6
        • 2.Qxc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 2
  • Sets
    • B(a);::R1(F)
    • B(a);XR(C)::R1(F)
    • B(a);XP(E)::R1(F)
    • S(b);OGATE,XR(F)::QAB1(G),XS(b)
  • Tries
    • Try
      • B(A);XB(a)
      • Threat
        • DUALS(2)
      • Vars
        • S(b);CHECK,OGATE,XP(E)::QAR2(G),XS(b)
        • S(b);OGATE,XR(F)::QAB1(G),XS(b)
        • S(b);::R1(F)
      • Refutation
        • S(b);CHECK
    • Try
      • R(F);CHECK
      • Vars
        • K(c);P_SPINS(b),S_FLIGHT::QAR2(G)
      • Refutation
        • K(c);P_SPINB(a),S_FLIGHT,XR(C)
  • Actual
    • R(F);
    • Threat
      • R1(F),XS(b)
    • Vars
      • S(b);CHECK,OGATE,XP(E)::QAR2(G),XS(b)
      • S(b);CHECK,N_GUARD::QAB1(G),XS(b)
      • K(c);P_SPINB(a),P_SPINS(b),S_FLIGHT,XR(C)::QAR2(G)
      • K(c);P_SPINS(b),S_FLIGHT,XR(F)::QAR2(G)
      • B(a);XR(C)::R1(F)
      • B(a);SBLOCK,XR(F)::QAR1(G)
      • S(b);N_GUARD::QAB1(G),XS(b)
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