MESON Chess Problem Database

Problem Display
PID: 165436 (2B2B2/2p2R1r/rkNp4/8/bK5p/1R6/8/7Q w - - 0 1)

Anonymous

British Chess Magazine 15. (Healey MT) Ty., 1909-1910

2B2B2/2p2R1r/rkNp4/8/bK5p/1R6/8/7Q

#2

7 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Bxc6
      • 2.Qg1#
  • Tries
    • 1.Kc4+?
      • 1...Bb5+
        • 2.Rxb5#
      • 1...Bxb3+!
    • 1.Se5?
      • threat
        • 2.Qb7#
      • 1...Ka7
        • 2.Qb7#
      • 1...Ra7
        • 2.Sc4#
      • 1...Bc6
        • 2.Qg1#
      • 1...d5
        • 2.Bc5#
      • 1...c6
        • 2.Sc4#
      • 1...c5+!
    • 1.Bxd6?
      • threat
        • 2.Bc5#
        • 2.Bxc7#
      • 1...Rxf7
        • 2.Bc5#
      • 1...Bxc6
        • 2.Bc5#
        • 2.Qg1#
      • 1...Ra7
        • 2.Bc5#
      • 1...Ra5
        • 2.Bxc7#
      • 1...Rh5
        • 2.Bxc7#
      • 1...cxd6!
  • Keys
    • 1.Sa5!
      • threat
        • 2.Qb7#
      • 1...c5+
        • 2.Kxa4#
      • 1...Ka7
        • 2.Qb7#
      • 1...Ra7
        • 2.Sc4#
      • 1...Bc6
        • 2.Qg1#
      • 1...d5
        • 2.Bc5#
      • 1...c6
        • 2.Sc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • B(a);SBLOCK,XS(D)::QAB(A)
  • Tries
    • Try
      • K(C);CHECK,P-FLIGHT
      • Vars
        • B(a);CHECK,N_GUARD,P_SPINB(a)::R1(B),XB(a)
      • Refutation
        • B(a);CHECK,XR(B)
    • Try
      • S(D);
      • Threat
        • QAR1(A)
      • Vars
        • K(d);P_SPINP(f),S_FLIGHT::QAR1(A)
        • R(c);SBLOCK::S(D)
        • B(a);S_CUTP(f)::QAB(A)
        • P(e);OGATE::B(G)
        • P(f);::S(D)
      • Refutation
        • P(f);CHECK
    • Try
      • B(G);XP(e)
      • Threat
        • DUALS(2)
      • Vars
        • R(g);XR(E)::B(G)
        • R(c);::B(G)
        • R(c);::B(G),XP(f)
        • R(g);::B(G),XP(f)
      • Refutation
        • P(f);XB(G)
  • Actual
    • S(D);
    • Threat
      • QAR1(A)
    • Vars
      • P(f);CHECK,SBLOCK::R(B)+K(C),XB(a)
      • K(d);P_SPINP(f),S_FLIGHT::QAR1(A)
      • R(c);SBLOCK::S(D)
      • B(a);S_CUTP(f)::QAB(A)
      • P(e);OGATE::B(G)
      • P(f);::S(D)
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