MESON Chess Problem Database

Problem Display
PID: 69825 (1b3B2/p3N2p/R3Pp2/1P1Nk3/1P2b3/1p2PpKB/3P2P1/qrQ5 w - - 0 1)

Navon, Emanuel

2nd Comm., Pat a Mat, 2001

1b3B2/p3N2p/R3Pp2/1P1Nk3/1P2b3/1p2PpKB/3P2P1/qrQ5

#2

13 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Qc3
      • 2.Qxc3#
    • 1...Qa2
      • 2.Qc3#
      • 2.d4#
    • 1...Qa3
      • 2.Qc3#
      • 2.d4#
    • 1...Qa4
      • 2.Qc3#
      • 2.d4#
    • 1...Qa5
      • 2.Qc3#
      • 2.d4#
    • 1...Rb2
      • 2.Qc3#
      • 2.d4#
    • 1...Bc7
      • 2.Qxc7#
    • 1...b2
      • 2.Qc3#
      • 2.d4#
    • 1...f5
      • 2.Bg7#
  • Tries
    • 1.Sc3?
      • threat
        • 2.d4#
      • 1...Qxc3
        • 2.Qxc3#
      • 1...Bc6
        • 2.Sxc6#
      • 1...f5
        • 2.Bg7#
      • 1...Bd3
        • 2.Sc6#
      • 1...Qxa6!
    • 1.Qb2+?
      • 1...Rxb2
        • 2.d4#
      • 1...Qxb2!
    • 1.Qc4?
      • threat
        • 2.Sc6#
      • 1...Bxd5
        • 2.Qxd5#
        • 2.Qf4#
      • 1...Bf5
        • 2.Qf4#
      • 1...f5
        • 2.Bg7#
      • 1...Qxa6!
  • Keys
    • 1.Qc5!
      • threat
        • 2.Sc6#
      • 1...Qxa6
        • 2.d4#
      • 1...Bxd5
        • 2.Qxd5#
      • 1...Bc2
        • 2.Sc3#
      • 1...Bd3
        • 2.Sc3#
      • 1...Bf5
        • 2.Sc3#
      • 1...Bg6
        • 2.Sc3#
      • 1...f5
        • 2.Bg7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 2
  • Sets
    • Q(a);N_GUARD::QAB(A),XQ(a)
    • B(j);N_GUARD::QAB(A),XB(j)
    • P(g);OGATEB::B(M)
  • Tries
    • Try
      • S(I);
      • Threat
        • P(B)
      • Vars
        • Q(a);OGATE,XS(I)::QAB(A),XQ(a)
        • B(e);N_GUARD::S(L),XB(e)
        • P(g);OGATEB::B(M)
        • B(e);N_GUARD::S(L)
      • Refutation
        • Q(a);XR(J)
    • Try
      • Q(A);CHECK
      • Vars
        • R(b);XQ(A)::P(B)
      • Refutation
        • Q(a);XQ(A)
    • Try
      • Q(A);
      • Threat
        • S(L)
      • Vars
        • B(e);OGATE::QAB1(A)
        • P(g);OGATEB::B(M)
      • Refutation
        • Q(a);XR(J)
  • Actual
    • Q(A);
    • Threat
      • S(L)
    • Vars
      • Q(a);N_GUARD,XR(J)::P(B)
      • B(e);OGATE,P_SPINB(e),XS(I)::QAR1(A),XB(e)
      • B(e);N_GUARD::QAR(A)+S(I)
      • P(g);OGATEB::B(M)
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