MESON Chess Problem Database

Problem Display
PID: 69073 (8/8/B5R1/3qB1nK/6Q1/8/8/R2b3k w - - 0 1)

Reeves, Alfred Christopher

Comm., Vodka Ty., 2006

8/8/B5R1/3qB1nK/6Q1/8/8/R2b3k

#2

6 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Qa2
      • 2.Rxd1#
    • 1...Qc6
      • 2.Rxd1#
    • 1...Qe6
      • 2.Rxd1#
    • 1...Qb7
      • 2.Rxd1#
    • 1...Qa8
      • 2.Rxd1#
    • 1...Qg8
      • 2.Rxd1#
    • 1...Sf3
      • 2.Qg2#
    • 1...Se4
      • 2.Qf3#
  • Tries
    • 1.Qxd1+?
      • 1...Kg2
        • 2.Qf1#
      • 1...Qxd1+!
  • Keys
    • 1.Bb7!
      • threat
        • 2.Rxd1#
      • 1...Sf3
        • 2.Qg2#
      • 1...Sh3
        • 2.Bxd5#
      • 1...Se4
        • 2.Qf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 6
  • Sets
    • Q(c);N_GUARD,SBLOCK::R(A),XB(a)
    • Q(c);N_GUARD::R(A),XB(a)
    • S(d);N_PINQ(B),P_PINB(C)::QAB1(B)
    • S(d);N_GUARD,P_PINB(C),S_CUTQ(c)::QAB(B)
  • Tries
    • Try
      • Q(B);CHECK,N_SPINQ(B),XB(a)
      • Vars
        • K(b);P_SPINS(d),S_FLIGHT::QAB1(B)
      • Refutation
        • Q(c);CHECK,P_SPINQ(c),XQ(B)
  • Actual
    • B(E);P_PINQ(c)
    • Threat
      • R(A),XB(a)
    • Vars
      • S(d);N_PINQ(B),N_SPINQ(c),P_PINB(C)::QAB1(B)
      • S(d);N_GUARD,P_PINB(C)::B(E),XQ(c)
      • S(d);N_GUARD,N_SPINQ(c),P_PINB(C),S_CUTQ(c)::QAB(B)
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Developed and maintained by Brian Stephenson.
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