MESON Chess Problem Database

Problem Display
PID: 164151 (2b5/2R5/1Q2ppK1/4p3/1N2k2p/r2qBp2/4NP2/4R2B w - - 0 1)

Barnes, Barry Peter

Sp. HM., StrateGems, 2014

2b5/2R5/1Q2ppK1/4p3/1N2k2p/r2qBp2/4NP2/4R2B

#2

9 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Qb1
      • 2.Rc4#
      • 2.Qc6#
    • 1...Qxe2
      • 2.Qc6#
    • 1...Qc4
      • 2.Rxc4#
    • 1...Qxe3
      • 2.Qc6#
    • 1...h3
      • 2.Sg3#
  • Tries
    • 1.Sg1?
      • threat
        • 2.Bxf3#
      • 1...Qxe3
        • 2.Rc4#
      • 1...Qe2
        • 2.Qc6#
      • 1...Qd1!
    • 1.Bc1?
      • threat
        • 2.Sc3#
        • 2.Sg3#
      • 1...Qxe2
        • 2.Rc4#
      • 1...Qc3
        • 2.Sxc3#
        • 2.Sg3#
      • 1...Qe3
        • 2.Qc6#
      • 1...Rc3
        • 2.Sxc3#
        • 2.Sg3#
      • 1...Qd2!
    • 1.Bd2?
      • threat
        • 2.Sc3#
        • 2.Sg3#
      • 1...Qxe2
        • 2.Rc4#
      • 1...Qc3
        • 2.Sxc3#
        • 2.Sg3#
      • 1...Qe3
        • 2.Qc6#
      • 1...Rc3
        • 2.Sxc3#
        • 2.Sg3#
      • 1...Qxd2!
    • 1.Bg5?
      • threat
        • 2.Sc3#
        • 2.Sg3#
      • 1...Qxe2
        • 2.Rc4#
      • 1...Qc3
        • 2.Sxc3#
        • 2.Sg3#
      • 1...Qe3
        • 2.Qc6#
      • 1...Rc3
        • 2.Sxc3#
        • 2.Sg3#
      • 1...fxg5!
    • 1.Rg1?
      • threat
        • 2.Rg4#
      • 1...Qxe3
        • 2.Qc6#
      • 1...f5!
    • 1.Rc4+?
      • 1...Qd4
        • 2.Qc6#
      • 1...Qxc4!
    • 1.Rh7?
      • threat
        • 2.Rxh4#
      • 1...Qxe3
        • 2.Qc6#
      • 1...h3
        • 2.Sg3#
        • 2.Rh4#
      • 1...f5!
    • 1.Qb7+?
      • 1...Qd5
        • 2.Rc4#
      • 1...Bxb7!
  • Keys
    • 1.Bh6!
      • threat
        • 2.Sc3#
        • 2.Sg3#
      • 1...Qxe2
        • 2.Rc4#
      • 1...Qc3
        • 2.Sxc3#
        • 2.Sg3#
      • 1...Qe3
        • 2.Qc6#
      • 1...Rc3
        • 2.Sxc3#
        • 2.Sg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 2
  • Sets
    • Q(b);N_GUARD,XS(C)::QAB(G)
    • Q(b);N_GUARD::R(I),XQ(b)
    • Q(b);N_GUARD,XB(E)::QAB(G)
    • P(e);N_GUARD::S(C)
  • Tries
    • Try
      • S(C);
      • Threat
        • B(B),XP(c)
      • Vars
        • Q(b);N_GUARD,P_SPINQ(b),XB(E)::R(I)
        • Q(b);N_GUARD::QAB(G)
      • Refutation
        • Q(b);
    • Try
      • B(E);
      • Threat
        • DUALS(2)
      • Vars
        • Q(b);N_GUARD,P_SPINQ(b),XS(C)::R(I)
        • Q(b);N_GUARD::QAB(G)
      • Refutation
        • Q(b);
    • Try
      • B(E);
      • Threat
        • DUALS(2)
      • Vars
        • Q(b);N_GUARD,P_SPINQ(b),XS(C)::R(I)
        • Q(b);N_GUARD::QAB(G)
      • Refutation
        • Q(b);XB(E)
    • Try
      • B(E);
      • Threat
        • DUALS(2)
      • Vars
        • Q(b);N_GUARD,P_SPINQ(b),XS(C)::R(I)
        • Q(b);N_GUARD::QAB(G)
      • Refutation
        • P(h);XB(E)
    • Try
      • R(A);
      • Threat
        • R(A)
      • Vars
        • Q(b);N_GUARD,XB(E)::QAB(G)
      • Refutation
        • P(h);
    • Try
      • R(I);CHECK
      • Vars
        • Q(b);P_SPINQ(b)::QAB(G)
      • Refutation
        • Q(b);XR(I)
    • Try
      • R(I);
      • Threat
        • R(I),XP(e)
      • Vars
        • Q(b);N_GUARD,XB(E)::QAB(G)
      • Refutation
        • P(h);
    • Try
      • Q(G);CHECK
      • Vars
        • Q(b);P_SPINQ(b)::R(I)
      • Refutation
        • B(i);XQ(G)
  • Actual
    • B(E);
    • Threat
      • DUALS(2)
    • Vars
      • Q(b);N_GUARD,P_SPINQ(b),XS(C)::R(I)
      • Q(b);N_GUARD::QAB(G)
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