MESON Chess Problem Database

Problem Display
PID: 74755 (1Q1B4/8/rb5K/1k1P3p/b4R2/1p5r/4N3/2R5 w - - 0 1)

Gamage, Frederick

Sheppard, Charles William

HM., American Chess Bulletin, 1944

1Q1B4/8/rb5K/1k1P3p/b4R2/1p5r/4N3/2R5

#2

7 + 7

5397 Frederick Gamage (Prcic) 2004

SOLUTION

  • SOUND
  • Sets
    • 1...Ra5
      • 2.Qxb6#
    • 1...Ra7
      • 2.Qxb6#
    • 1...Ra8
      • 2.Qxb6#
  • Tries
    • 1.Sc3+?
      • 1...Ka5
        • 2.Rxa4#
      • 1...Kc5
        • 2.Be7#
      • 1...Rxc3!
  • Keys
    • 1.Qd6!
      • threat
        • 2.Qb4#
      • 1...Ka5
        • 2.Qb4#
      • 1...Bxd8
        • 2.Rc5#
      • 1...Ra7
        • 2.Qxb6#
      • 1...Ra8
        • 2.Qxb6#
      • 1...Ra5
        • 2.Qxb6#
      • 1...Bg1
        • 2.Rb4#
      • 1...Bf2
        • 2.Rb4#
      • 1...Be3
        • 2.Sc3#
      • 1...Bd4
        • 2.Sxd4#
      • 1...Ba5
        • 2.Sd4#
        • 2.Rc5#
      • 1...Bc5
        • 2.Rxc5#
      • 1...Ba7
        • 2.Rb4#
      • 1...Bc7
        • 2.Rc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
    • R(f);N_GUARD::QAR1(F),XB(g)
  • Tries
    • Try
      • S(B);CHECK
      • Vars
        • K(d);P-FLIGHT::R1(C),XB(c)
        • K(d);N_SPINB(g),P-FLIGHT::B(G)
      • Refutation
        • R(b);XS(B)
  • Actual
    • Q(F);N_PINB(g)
    • Threat
      • QAR1(F)
    • Vars
      • K(d);P-FLIGHT,P_SPINB(g)::QAB1(F)
      • B(g);N_GUARD,P_PINQ(F),XB(G)::R1(A)
      • R(f);N_GUARD::QAR1(F),XB(g)
      • B(g);P_PINQ(F)::R1(C)
      • B(g);P_PINQ(F),P_PINR(C),S_CUTR(b)::S(B)
      • B(g);N_GUARD,P_PINQ(F)::S(B),XB(g)
      • B(g);N_GUARD,P_PINQ(F)::R1(A),XB(g)
      • B(g);N_GUARD,P_PINQ(F)::R1(A)
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