MESON Chess Problem Database

Problem Display
PID: 206138 (4Q3/1p2p1Np/4r3/1p2b3/4k3/r1BR3n/2P1NpP1/4nK2 w - - 0 1)

Rice, John Michael

Probleemblad, 2017

4Q3/1p2p1Np/4r3/1p2b3/4k3/r1BR3n/2P1NpP1/4nK2

#2

8 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Sf3
      • 2.gxf3#
    • 1...Sf4
      • 2.Sg3#
  • Tries
    • 1.Rd4+?
      • 1...Ke3
        • 2.Sf5#
        • 2.Bd2#
      • 1...Bxd4!
    • 1.Qxb5?
      • threat
        • 2.Qd5#
      • 1...Sxd3
        • 2.Qxd3#
      • 1...Rd6
        • 2.Qxe5#
      • 1...Bd4
        • 2.Qf5#
      • 1...Sf4
        • 2.Sg3#
      • 1...Ra5!
    • 1.Qh5?
      • threat
        • 2.Qf5#
      • 1...Bxg7
        • 2.Qd5#
      • 1...Sxd3
        • 2.Qf3#
      • 1...Rf6
        • 2.Qxe5#
      • 1...Sg5!
    • 1.Qf7?
      • threat
        • 2.Qf5#
      • 1...Bxg7
        • 2.Sg3#
      • 1...Sxd3
        • 2.Qf3#
      • 1...Rf6
        • 2.Qd5#
      • 1...Bf6!
  • Keys
    • 1.Qd7!
      • threat
        • 2.Qd5#
      • 1...Sxd3
        • 2.Qxd3#
      • 1...Bd4
        • 2.Qxd4#
      • 1...Rd6
        • 2.Qf5#
      • 1...Bd6
        • 2.Qxb7#
      • 1...Sf4
        • 2.Sg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • S(a);OGATE::P(D),XS(a)
    • S(d);SBLOCK,S_CUTB(g)::S(C)
  • Tries
    • Try
      • R(F);CHECK
      • Refutation
        • B(g);XR(F)
    • Try
      • Q(H);XP(f)
      • Threat
        • QAB1(H)
      • Vars
        • S(a);OGATE,XR(F)::QAB1(H),XS(a)
        • R(h);N_GUARD::QAR1(H),XB(g)
        • B(g);OGATE::QAB1(H)
        • S(d);SBLOCK,S_CUTB(g)::S(C)
      • Refutation
        • R(c);
    • Try
      • Q(H);
      • Threat
        • QAB1(H)
      • Vars
        • B(g);OGATE,XS(G)::QAB1(H)
        • S(a);N_GUARD,XR(F)::QAB1(H)
        • R(h);N_GUARD::QAR1(H),XB(g)
      • Refutation
        • S(d);
    • Try
      • Q(H);
      • Threat
        • QAB1(H)
      • Vars
        • B(g);N_GUARD,XS(G)::S(C)
        • S(a);N_GUARD,XR(F)::QAB1(H)
        • R(h);OGATE::QAB1(H)
      • Refutation
        • B(g);
  • Actual
    • Q(H);
    • Threat
      • QAB1(H)
    • Vars
      • S(a);OGATE,XR(F)::QAB1(H),XS(a)
      • B(g);N_GUARD::QAR1(H),XB(g)
      • R(h);OGATE::QAB1(H)
      • B(g);S_CUTR(h)::QAB(H),XP(i)
      • S(d);SBLOCK,S_CUTB(g)::S(C)
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