MESON Chess Problem Database

Problem Display
PID: 54837 (3R2rb/1KQ5/6n1/1P1B3b/6r1/3kP2q/8/1N2R3 w - - 0 1)

Gamage, Frederick

HM., Hampstead and Highgate Express, 1904

3R2rb/1KQ5/6n1/1P1B3b/6r1/3kP2q/8/1N2R3

#2

8 + 7

5397 Frederick Gamage (Prcic) 2004

SOLUTION

  • SOUND
  • Sets
    • 1...Rg1
      • 2.Qc4#
    • 1...Rg2
      • 2.Qc4#
    • 1...Rg3
      • 2.Qc4#
    • 1...Rc4
      • 2.Qxc4#
    • 1...Rd4
      • 2.Qc3#
    • 1...Rg5
      • 2.Qc4#
    • 1...Bc3
      • 2.Qxc3#
    • 1...Bd4
      • 2.Qc4#
    • 1...Sf4
      • 2.Qc4#
    • 1...Se5
      • 2.Qc3#
  • Tries
    • 1.Bh1+?
      • 1...Rd4
        • 2.Qc3#
      • 1...Bd4
        • 2.Qc3#
      • 1...Rxd8!
    • 1.Bg2+?
      • 1...Rd4
        • 2.Qc3#
      • 1...Bd4
        • 2.Qc3#
      • 1...Rxd8!
    • 1.Bb3+?
      • 1...Rd4
        • 2.Bc2#
        • 2.Qc2#
      • 1...Rxd8
        • 2.Bc2#
        • 2.Qc2#
      • 1...Bd4
        • 2.Bc2#
        • 2.Qc2#
      • 1...Ke4!
    • 1.Bf3+?
      • 1...Rd4
        • 2.Qc3#
      • 1...Bd4
        • 2.Qc3#
      • 1...Rxd8!
    • 1.Bc4+?
      • 1...Kc2
        • 2.Rd2#
      • 1...Ke4!
  • Keys
    • 1.e4!
      • threat
        • 2.Qc4#
      • 1...Kd4
        • 2.Bxg8#
      • 1...Rxe4
        • 2.Bxe4#
      • 1...Bc3
        • 2.Qxc3#
      • 1...Rg7
        • 2.Bf7#
      • 1...Se5
        • 2.Qc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 8
  • Sets
    • R(c);N_GUARD::QAB1(G)
    • R(c);N_GUARD::QAB1(G),XR(c)
    • R(c);S_CUTB(g)::QAR1(G)
    • B(g);N_GUARD::QAR1(G),XB(g)
    • B(g);S_CUTR(c)::QAB1(G)
    • S(e);S_CUTR(c)::QAB1(G)
    • S(e);S_CUTB(g)::QAR1(G)
  • Tries
    • Try
      • B(E);CHECK
      • Vars
        • R(c);P_SPINR(c)::QAR1(G)
        • B(g);P_SPINB(g)::QAR1(G)
      • Refutation
        • R(f);XR(H)
    • Try
      • B(E);CHECK
      • Vars
        • R(c);P_SPINR(c)::QAR1(G)
        • B(g);P_SPINB(g)::QAR1(G)
      • Refutation
        • R(f);XR(H)
    • Try
      • B(E);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(E);CHECK
      • Vars
        • R(c);P_SPINR(c)::QAR1(G)
        • B(g);P_SPINB(g)::QAR1(G)
      • Refutation
        • R(f);XR(H)
    • Try
      • B(E);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::R1(H)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • P(C);
    • Threat
      • QAB1(G)
    • Vars
      • K(a);P-FLIGHT::R(H)+B(E),XR(f)
      • R(c);OGATE,XP(C)::R(H)+B(E),DCHECK,XR(c)
      • B(g);N_GUARD::QAR1(G),XB(g)
      • R(f);N_GUARD,P_PINQ(G),S_CUTB(g)::R(H)+B(E)
      • S(e);S_CUTB(g)::QAR1(G)
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