MESON Chess Problem Database

Problem Display
PID: 728 (8/1R3n2/r2k4/1P5p/1q3Npr/BBR1P3/3N3Q/4K3 w - - 0 1)

Gamage, Frederick

1st Prize, British Chess Magazine TT, 1944

8/1R3n2/r2k4/1P5p/1q3Npr/BBR1P3/3N3Q/4K3

#2

10 + 7

5064 100 Years of the American Two-move Chess Problem 1962
788 US Problem Bulletin 1963
3174 The Two-move Chess Problem Tradition and Development 1966
145 StrateGems 1998
5397 Frederick Gamage (Prcic) 2004

SOLUTION

  • SOUND
  • Sets
    • 1...Qc5
      • 2.Sc4#
    • 1...Se5
      • 2.Se4#
      • 2.Bxb4#
  • Tries
    • 1.Sd3+?
      • 1...Rxh2
        • 2.Se4#
        • 2.Bxb4#
      • 1...Se5
        • 2.Se4#
        • 2.Bxb4#
        • 2.Qxe5#
      • 1...g3!
    • 1.Sh3+?
      • 1...Se5
        • 2.Se4#
        • 2.Bxb4#
      • 1...g3!
    • 1.Sg6+?
      • 1...Rxh2
        • 2.Se4#
        • 2.Bxb4#
      • 1...Se5
        • 2.Se4#
        • 2.Bxb4#
        • 2.Qxe5#
      • 1...g3!
    • 1.Rd3+?
      • 1...Kc5
        • 2.Rd5#
      • 1...Ke5!
  • Keys
    • 1.Rc5!
      • threat
        • 2.Rd5#
      • 1...Qxd2+
        • 2.Qxd2#
      • 1...Kxc5
        • 2.Sd3#
      • 1...Qxc5
        • 2.Sc4#
      • 1...Qxf4
        • 2.Se4#
      • 1...Qxb5
        • 2.Se4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • Q(a);::S(B)
  • Tries
    • Try
      • S(H);CHECK
      • Refutation
        • P(b);P_SPINP(b)
    • Try
      • S(H);CHECK
      • Refutation
        • P(b);P_SPINP(b)
    • Try
      • S(H);CHECK
      • Refutation
        • P(b);P_SPINP(b)
    • Try
      • R(F);CHECK,P_SPINS(B)
      • Vars
        • K(f);S_FLIGHT::R1(F)
      • Refutation
        • K(f);N_SPINQ(a),S_FLIGHT
  • Actual
    • R(F);N_PINQ(a),P_SPINS(B)
    • Threat
      • R1(F)
    • Vars
      • Q(a);CHECK,OGATE,XS(B)::QAR(C),XQ(a)
      • K(f);P_SPINQ(a),S_FLIGHT,XR(F)::S(H)
      • Q(a);N_PINS(B),P_SPINQ(a),XR(F)::S(B)
      • Q(a);N_PINS(B),P_SPINQ(a),XS(H)::S(B)
      • Q(a);N_PINS(B),XP(I)::S(B)
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