MESON Chess Problem Database

Problem Display
PID: 146659 (K5b1/ppN5/7r/n1R2p2/1P1k1P2/np3Qb1/1Pp2p2/2N2q2 w - - 0 1)

Evans, DW

Chess, 1955

K5b1/ppN5/7r/n1R2p2/1P1k1P2/np3Qb1/1Pp2p2/2N2q2

#2

8 + 13

SOLUTION

  • SOUND
  • Sets
    • 1...Qe2
      • 2.Sxe2#
    • 1...Qg2
      • 2.Se2#
      • 2.Qd3#
    • 1...Qd3
      • 2.Qxd3#
    • 1...Qh3
      • 2.Se2#
      • 2.Qd3#
    • 1...Qe1
      • 2.Qd3#
    • 1...Qg1
      • 2.Se2#
      • 2.Qd3#
    • 1...Qh1
      • 2.Se2#
      • 2.Qd3#
    • 1...Bxf4
      • 2.Qxf4#
    • 1...S3c4
      • 2.Sb5#
    • 1...S5c4
      • 2.Sxb3#
  • Tries
    • 1.Rd5+?
      • 1...Kc4
        • 2.Qc3#
      • 1...Bxd5!
  • Keys
    • 1.Rc3!
      • threat
        • 2.Qe3#
      • 1...Qxc1
        • 2.Qd3#
      • 1...Bxf4
        • 2.Qxf4#
      • 1...Qe2
        • 2.Sxe2#
      • 1...Qd3
        • 2.Qxd3#
      • 1...Qe1
        • 2.Qd3#
      • 1...Re6
        • 2.Qd5#
      • 1...S3c4
        • 2.Sb5#
      • 1...S5c4
        • 2.Sxb3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • Q(a);N_GUARD::S(A),XQ(a)
    • Q(a);N_GUARD::QAR1(C),XQ(a)
    • Q(a);N_GUARD::QAR1(C)
    • B(f);OGATE,XP(E)::QAR2(C),XB(f)
    • S(d);N_GUARD,S_CUTQ(a)::S(G)
    • S(h);N_GUARD,S_CUTB(m)::S(A),XP(e)
  • Tries
    • Try
      • R(F);CHECK
      • Vars
        • K(g);P-FLIGHT::QAR1(C)
      • Refutation
        • B(m);XR(F)
  • Actual
    • R(F);
    • Threat
      • QAB1(C)
    • Vars
      • Q(a);N_GUARD,XS(A)::QAR1(C)
      • B(f);OGATE,XP(E)::QAR2(C),XB(f)
      • Q(a);N_GUARD::S(A),XQ(a)
      • Q(a);N_GUARD::QAR1(C),XQ(a)
      • Q(a);N_GUARD::QAR1(C)
      • R(j);S_CUTB(m)::QAR1(C)
      • S(d);N_GUARD,S_CUTQ(a)::S(G)
      • S(h);N_GUARD,S_CUTB(m)::S(A),XP(e)
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