MESON Chess Problem Database

Problem Display
PID: 50469 (1BN4b/1P1Nr2b/2p2P2/Q7/n3k1p1/3R4/3Kn3/8 w - - 0 1)

Fison, Bernard

Chess Amateur (The), 1906

1BN4b/1P1Nr2b/2p2P2/Q7/n3k1p1/3R4/3Kn3/8

#2

8 + 8

15351 SCPF/BCPS Black Books 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Re5
      • 2.Qxe5#
    • 1...Rxd7
      • 2.Qe5#
    • 1...Rf7
      • 2.Qe5#
    • 1...Rg7
      • 2.Qe5#
    • 1...Bxf6
      • 2.Sxf6#
    • 1...Sd4
      • 2.Re3#
    • 1...Sf4
      • 2.Sd6#
  • Tries
    • 1.Sxe7?
      • threat
        • 2.Qe5#
      • 1...Bxf6
        • 2.Sxf6#
      • 1...Sc5
        • 2.Sxc5#
      • 1...c5!
    • 1.Qc5?
      • threat
        • 2.Re3#
      • 1...Rxd7
        • 2.Qe5#
      • 1...Re5
        • 2.Qxe5#
      • 1...Sxc5!
    • 1.Qg5?
      • threat
        • 2.Sd6#
      • 1...Rxd7
        • 2.Qe5#
      • 1...Re6!
  • Keys
    • 1.Qh5!
      • 1...Rxd7
        • 2.Qe5#
      • 1...Bxf6
        • 2.Sxf6#
      • 1...Re5
        • 2.Qxe5#
      • 1...Re6
        • 2.Qxh7#
      • 1...Rf7
        • 2.Qe5#
      • 1...Rg7
        • 2.Qe5#
      • 1...Re8
        • 2.Qxh7#
      • 1...Bf5
        • 2.Qh1#
      • 1...Bg6
        • 2.Qxg6#
      • 1...Bg8
        • 2.Qg6#
      • 1...Bg7
        • 2.Qxh7#
      • 1...Sc1
        • 2.Qxg4#
      • 1...Sg1
        • 2.Qxg4#
      • 1...Sec3
        • 2.Qxg4#
      • 1...Sg3
        • 2.Qxg4#
      • 1...Sd4
        • 2.Re3#
      • 1...Sf4
        • 2.Sd6#
      • 1...Sb2
        • 2.Sc5#
      • 1...Sac3
        • 2.Sc5#
      • 1...Sc5
        • 2.Sxc5#
      • 1...Sb6
        • 2.Sc5#
      • 1...g3
        • 2.Qf3#
      • 1...c5
        • 2.Qd5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 16
    • REMOVED MATES = 0
  • Sets
    • R(f);N_GUARD::QAR1(C),XR(f)
    • R(f);N_GUARD,P_PINR(B),XS(F)::QAR1(C)
    • R(f);N_GUARD::QAR1(C)
    • B(h);XP(D)::S(F),XB(h)
    • S(a);SBLOCK::R1(B)
    • S(a);SBLOCK::S(H)
  • Tries
    • Try
      • S(H);XR(f)
      • Threat
        • QAR1(C)
      • Vars
        • B(h);XP(D)::S(F),XB(h)
        • S(b);N_GUARD::S(F),XS(b)
      • Refutation
        • P(e);
    • Try
      • Q(C);
      • Threat
        • R1(B)
      • Vars
        • R(f);N_GUARD,P_PINR(B),XS(F)::QAR1(C)
        • R(f);N_GUARD::QAR1(C),XR(f)
      • Refutation
        • S(b);XQ(C)
    • Try
      • Q(C);
      • Threat
        • S(H)
      • Vars
        • R(f);N_GUARD,P_PINR(B),XS(F)::QAR1(C)
      • Refutation
        • R(f);
  • Actual
    • Q(C);
    • Vars
      • R(f);N_GUARD,P_PINR(B),XS(F)::QAR1(C)
      • B(h);XP(D)::S(F),XB(h)
      • R(f);N_GUARD::QAR1(C),XR(f)
      • R(f);N_GUARD::QAB(C),XB(g)
      • R(f);N_GUARD::QAR1(C)
      • B(g);SBLOCK::QAB(C)
      • B(g);N_GUARD::QAB(C),XB(g)
      • B(g);N_GUARD::QAB(C)
      • B(h);S_CUTR(f)::QAB(C),XB(g)
      • S(a);N_GUARD::QAR2(C),XP(d)
      • S(a);SBLOCK::R1(B)
      • S(a);SBLOCK::S(H)
      • S(b);N_GUARD::S(F)
      • S(b);N_GUARD::S(F),XS(b)
      • P(d);OGATE::QAB1(C)
      • P(e);N_GUARD::QAB1(C)
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