MESON Chess Problem Database

Problem Display
PID: 155508 (8/4B3/3PR3/3q1k1B/2pp4/Q2N1pP1/7K/6n1 w - - 0 1)

Gamage, Frederick

British Chess Magazine, 1905

8/4B3/3PR3/3q1k1B/2pp4/Q2N1pP1/7K/6n1

#2

8 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Qc6
      • 2.Re5#
    • 1...Qb7
      • 2.Re5#
    • 1...Qa8
      • 2.Re5#
    • 1...Qe5
      • 2.Rxe5#
  • Tries
    • 1.Bg6+?
      • 1...Kg4
        • 2.Sf2#
      • 1...Kxe6!
    • 1.Qc5?
      • threat
        • 2.Qxd5#
      • 1...Kxe6
        • 2.Qc8#
      • 1...Qe5
        • 2.Rxe5#
        • 2.Qxe5#
      • 1...Qxc5!
  • Keys
    • 1.Qa8!
      • threat
        • 2.Qxd5#
      • 1...Kxe6
        • 2.Qc8#
      • 1...Qxe6
        • 2.g4#
      • 1...Qxa8
        • 2.Re5#
      • 1...Qxd6
        • 2.Qe4#
      • 1...Qe4
        • 2.Qxe4#
      • 1...Qc6
        • 2.Re5#
      • 1...Qb7
        • 2.Re5#
      • 1...Qa5
        • 2.Qe4#
      • 1...Qb5
        • 2.Qe4#
      • 1...Qc5
        • 2.Qe4#
      • 1...Qe5
        • 2.Rxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
    • Q(e);N_GUARD::R1(G)
    • Q(e);N_GUARD,P_PINP(D)::R1(G),XQ(e)
  • Tries
    • Try
      • B(E);CHECK
      • Vars
        • K(f);S_FLIGHT::S(C)
      • Refutation
        • K(f);S_FLIGHT,XR(G)
    • Try
      • Q(B);P_PINQ(e)
      • Threat
        • QAR2(B),XQ(e)
      • Vars
        • K(f);N_SPINQ(e),OGATEB,S_FLIGHT,XR(G)::QAB(B)
      • Refutation
        • Q(e);N_SPINQ(e),XQ(B)
  • Actual
    • Q(B);
    • Threat
      • QAR2(B),XQ(e)
    • Vars
      • K(f);OGATEB,S_FLIGHT,XR(G)::QAB(B)
      • Q(e);SBLOCK,XR(G)::P(D)
      • Q(e);N_GUARD,XQ(B)::R1(G)
      • Q(e);OGATE,P_PINP(D),XP(F)::QAB1(B)
      • Q(e);OGATE::QAB1(B),XQ(e)
      • Q(e);N_GUARD::R1(G)
      • Q(e);OGATE::QAB1(B)
      • Q(e);N_GUARD,P_PINP(D)::R1(G),XQ(e)
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