MESON Chess Problem Database

Problem Display
PID: 53811 (3k4/1K6/1P3P2/p2n4/B2Q4/7n/1p1B1pb1/3R2Rq w - - 0 1)

Jarman, CP

Chess, 1942

3k4/1K6/1P3P2/p2n4/B2Q4/7n/1p1B1pb1/3R2Rq

#2

8 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Bf1
      • 2.Rg8#
    • 1...Bf3
      • 2.Rg8#
    • 1...Be4
      • 2.Rg8#
  • Tries
    • 1.Rxg2?
      • threat
        • 2.Rg8#
        • 2.Qxd5#
      • 1...Qe1
        • 2.Qxd5#
      • 1...Qg1
        • 2.Qxd5#
      • 1...Qh2
        • 2.Rg8#
      • 1...Sf4
        • 2.Rg8#
      • 1...Sg5
        • 2.Qxd5#
      • 1...Qxg2!
  • Keys
    • 1.Qe4!
      • threat
        • 2.Qe8#
      • 1...Bxe4
        • 2.Rg8#
      • 1...Sxb6
        • 2.Bxa5#
      • 1...Sxf6
        • 2.Bg5#
      • 1...Sc3
        • 2.Bxc3#
      • 1...Se3
        • 2.Bxe3#
      • 1...Sb4
        • 2.Bxb4#
      • 1...Sdf4
        • 2.Bxf4#
      • 1...Sc7
        • 2.bxc7#
      • 1...Se7
        • 2.fxe7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 2
  • Sets
    • B(d);OGATE::R(B)
  • Tries
    • Try
      • R(B);XB(d)
      • Threat
        • DUALS(2)
      • Vars
        • Q(a);::QAR(E),XS(g)
        • Q(a);::R(B)
        • S(e);::R(B)
        • S(e);::QAR(E),XS(g)
      • Refutation
        • Q(a);XR(B)
  • Actual
    • Q(E);N_PINS(g)
    • Threat
      • QAR1(E)
    • Vars
      • B(d);OGATE,XQ(E)::R(B)
      • S(g);OGATEB,P_PINQ(E),XP(F)::R(A)+B(C),XP(f)
      • S(g);OGATEB,P_PINQ(E),XP(G)::R(A)+B(C)
      • S(g);OGATEB,P_PINQ(E)::R(A)+B(C),XS(g)
      • S(g);OGATE,P_PINQ(E)::P(F),XS(g)
      • S(g);OGATE,P_PINQ(E)::P(G),XS(g)
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