MESON Chess Problem Database

Problem Display
PID: 80997 (2N5/1n1p2p1/2p3Q1/2bkP3/5P2/1nR5/2N5/7K w - - 0 1)

Rice, John Michael

BCSC Starter, 2008-2009

2N5/1n1p2p1/2p3Q1/2bkP3/5P2/1nR5/2N5/7K

#2

7 + 7

56 The Problemist 2008

SOLUTION

  • SOUND
  • Sets
    • 1...Bg1
      • 2.Se7#
    • 1...Bf2
      • 2.Se7#
    • 1...Ba3
      • 2.Sb6#
    • 1...Be3
      • 2.Se7#
    • 1...Bb4
      • 2.Sb6#
    • 1...Bd4
      • 2.Sb4#
      • 2.Se7#
    • 1...Bb6
      • 2.Sxb6#
      • 2.Se7#
    • 1...Bd6
      • 2.Sb6#
    • 1...Ba7
      • 2.Se7#
    • 1...Be7
      • 2.Sb6#
      • 2.Sxe7#
    • 1...Bf8
      • 2.Sb6#
    • 1...Sd4
      • 2.Se3#
    • 1...Sd6
      • 2.Se7#
    • 1...d6
      • 2.Se7#
  • Tries
    • 1.Se3+?
      • 1...Kd4
        • 2.Rd3#
        • 2.Qd3#
      • 1...Bxe3!
    • 1.Sb4+?
      • 1...Kd4
        • 2.Qd3#
      • 1...Bxb4!
    • 1.Rxc5+?
      • 1...S3xc5
        • 2.Sb6#
      • 1...S7xc5
        • 2.Sb6#
      • 1...Kxc5!
    • 1.Qf5?
      • threat
        • 2.e6#
      • 1...Bd4
        • 2.Sb4#
        • 2.Se7#
      • 1...Bd6
        • 2.Sb6#
        • 2.exd6#
      • 1...Sd4
        • 2.Se3#
      • 1...Sd6
        • 2.Se7#
        • 2.exd6#
      • 1...g6!
  • Keys
    • 1.e6!
      • threat
        • 2.Qf5#
      • 1...dxe6
        • 2.Qg2#
      • 1...Bd4
        • 2.Sb4#
      • 1...Bd6
        • 2.Sb6#
      • 1...Sd4
        • 2.Se3#
      • 1...Sd6
        • 2.Se7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 8
  • Sets
    • B(b);N_GUARD::S(G)
    • S(a);SBLOCK,S_CUTB(b)::S(B)
    • S(e);S_CUTB(b)::S(G)
    • P(f);S_CUTB(b)::S(G)
  • Tries
    • Try
      • S(B);CHECK
      • Refutation
        • B(b);XS(B)
    • Try
      • S(B);CHECK
      • Vars
        • K(c);P-FLIGHT::QAR1(F)
      • Refutation
        • B(b);XS(B)
    • Try
      • R(C);CHECK,XB(b)
      • Vars
        • S(a);SBLOCK,XR(C)::S(G)
        • S(e);SBLOCK,XR(C)::S(G)
      • Refutation
        • K(c);P-FLIGHT,XR(C)
    • Try
      • Q(F);
      • Threat
        • QAR(F)+P(E)
      • Vars
        • S(a);SBLOCK,S_CUTB(b)::S(B)
      • Refutation
        • P(g);
  • Actual
    • P(E);
    • Threat
      • QAR2(F)
    • Vars
      • P(f);SBLOCK,XP(E)::QAB(F)
      • B(b);N_GUARD,SBLOCK::S(B)
      • B(b);N_GUARD,SBLOCK::S(G)
      • S(a);SBLOCK,S_CUTB(b)::S(B)
      • S(e);SBLOCK,S_CUTB(b)::S(G)
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