MESON Chess Problem Database

Problem Display
PID: 55940 (7B/3p1N2/3QbN1b/3p3r/2B4p/1P2kp1p/1P3p1P/2nR1K2 w - - 0 1)

Janet, Frank

2nd Comm., Brisbane Courier, 1914-1915

7B/3p1N2/3QbN1b/3p3r/2B4p/1P2kp1p/1P3p1P/2nR1K2

#2

10 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Re5
      • 2.Qxe5#
    • 1...Bg5
      • 2.Qe5#
    • 1...Sa2
      • 2.Rd3#
    • 1...Se2
      • 2.Rd3#
    • 1...Sxb3
      • 2.Rd3#
    • 1...Sd3
      • 2.Rxd3#
    • 1...dxc4
      • 2.Qd2#
      • 2.Qd4#
    • 1...d4
      • 2.Qxd4#
  • Tries
    • 1.Sg5?
      • threat
        • 2.Qe5#
      • 1...Sd3
        • 2.Rxd3#
      • 1...Bf5
        • 2.Sxd5#
      • 1...Rxg5!
    • 1.Qc5+?
      • 1...d4
        • 2.Qxd4#
      • 1...Kf4!
    • 1.Qb6+?
      • 1...d4
        • 2.Qxd4#
      • 1...Kf4!
    • 1.Qxe6+?
      • 1...Kf4
        • 2.Sxh5#
        • 2.Rd4#
      • 1...Re5
        • 2.Qxe5#
      • 1...dxe6!
  • Keys
    • 1.Rd4!
      • 1...Kxd4
        • 2.Qb6#
      • 1...Bxf7
        • 2.Sg4#
      • 1...Sxb3
        • 2.Rd3#
      • 1...dxc4
        • 2.Re4#
      • 1...Sd3
        • 2.Rxd3#
      • 1...Bf5
        • 2.Sxd5#
      • 1...Re5
        • 2.Qxe5#
      • 1...Rf5
        • 2.Sg4#
      • 1...Rg5
        • 2.Qf4#
      • 1...Bg4
        • 2.Sxg4#
      • 1...Bf4
        • 2.Qxf4#
      • 1...Bg5
        • 2.Qe5#
      • 1...Bg7
        • 2.Qf4#
      • 1...Bf8
        • 2.Qf4#
      • 1...Sa2
        • 2.Rd3#
      • 1...Se2
        • 2.Rd3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 10
    • REMOVED MATES = 1
  • Sets
    • R(h);N_GUARD::QAR2(G),XR(h)
    • B(j);S_CUTR(h)::QAR2(G)
    • S(a);N_GUARD::R1(A)
    • S(a);N_GUARD,XP(E)::R1(A)
    • S(a);N_GUARD::R1(A),XS(a)
    • P(g);OGATE::QAB1(G),XP(g)
  • Tries
    • Try
      • S(I);
      • Threat
        • QAR2(G)
      • Vars
        • S(a);N_GUARD::R1(A),XS(a)
        • B(i);N_GUARD::S(H),XP(g)
      • Refutation
        • R(h);XS(I)
    • Try
      • Q(G);CHECK
      • Vars
        • P(g);P_SPINP(g)::QAB1(G),XP(g)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(G);CHECK
      • Vars
        • P(g);P_SPINP(g)::QAB1(G),XP(g)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(G);CHECK,XB(i)
      • Vars
        • R(h);N_GUARD,P_SPINR(h)::QAR2(G),XR(h)
      • Refutation
        • P(k);XQ(G)
  • Actual
    • R(A);
    • Vars
      • K(c);OGATEB,P_SPINP(g),S_FLIGHT,XR(A)::QAB(G)
      • B(i);N_GUARD,XS(I)::S(H)
      • S(a);N_GUARD,XP(E)::R1(A)
      • P(g);N_GUARD,XB(F)::R1(A)
      • S(a);N_GUARD::R1(A),XS(a)
      • B(i);N_GUARD,S_CUTR(h)::S(H),XP(g)
      • R(h);N_GUARD::QAR2(G),XR(h)
      • R(h);S_CUTB(i)::S(H)
      • R(h);S_CUTB(j)::QAB1(G)
      • B(i);N_GUARD::S(H),XB(i)
      • B(j);N_GUARD::QAB1(G),XB(j)
      • B(j);S_CUTR(h)::QAR2(G)
      • B(j);N_GUARD::QAB1(G)
      • S(a);N_GUARD::R1(A)
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