MESON Chess Problem Database

Problem Display
PID: 61453 (8/b1B1K3/5p2/1QnP1N1R/4kpP1/1qP1N3/3pB3/8 w - - 0 1)

Hassan, Molham

Saunders, Denis M

The Problemist, 2005

8/b1B1K3/5p2/1QnP1N1R/4kpP1/1qP1N3/3pB3/8

#2

10 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Qd1
      • 2.Qc4#
      • 2.Qb4#
    • 1...Qc2
      • 2.Qc4#
      • 2.Qb4#
    • 1...Qc4
      • 2.Qxc4#
    • 1...Qb1
      • 2.Qc4#
    • 1...Qb2
      • 2.Qc4#
    • 1...Qa3
      • 2.Qc4#
    • 1...Qb4
      • 2.Qxb4#
    • 1...Sd3
      • 2.Qxd3#
    • 1...Sa4
      • 2.Qd3#
    • 1...Sa6
      • 2.Qd3#
    • 1...Se6
      • 2.Qd3#
    • 1...Sb7
      • 2.Qd3#
    • 1...Sd7
      • 2.Qd3#
    • 1...fxe3
      • 2.Sg3#
  • Tries
    • 1.Sc2?
      • threat
        • 2.Sd6#
      • 1...Kxd5
        • 2.Bf3#
      • 1...Qxc2
        • 2.Qc4#
      • 1...Sb7
        • 2.Qd3#
      • 1...f3
        • 2.Sg3#
      • 1...Qxd5!
    • 1.Sc4?
      • threat
        • 2.Sfd6#
      • 1...Kxd5
        • 2.Bf3#
      • 1...Qxc4
        • 2.Qxc4#
      • 1...Sb7
        • 2.Sxd2#
      • 1...f3
        • 2.Sg3#
      • 1...Qxc3!
    • 1.Qb4+?
      • 1...Qc4
        • 2.Qxc4#
      • 1...Qxb4!
  • Keys
    • 1.Sd1!
      • threat
        • 2.Sd6#
      • 1...Kxd5
        • 2.Bf3#
      • 1...Qxd1
        • 2.Qc4#
      • 1...Qxd5
        • 2.Sf2#
      • 1...Qxc3
        • 2.Sxc3#
      • 1...Sb7
        • 2.Qd3#
      • 1...f3
        • 2.Sg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 11
  • Sets
    • Q(b);N_GUARD::QAR2(E),XQ(b)
    • Q(b);N_GUARD::QAR2(E)
    • Q(b);N_GUARD::QAR(E),XQ(b)
    • S(e);N_GUARD::QAB1(E),XS(e)
    • S(e);N_GUARD::QAB1(E)
    • P(d);N_GUARD,SBLOCK,XS(C)::S(G)
  • Tries
    • Try
      • S(C);
      • Threat
        • S(G)
      • Vars
        • K(c);P_SPINS(e),S_FLIGHT,XP(F)::B(A)
        • Q(b);N_GUARD,XS(C)::QAR2(E)
        • S(e);N_GUARD::QAB1(E)
        • P(d);N_GUARD::S(G)
      • Refutation
        • Q(b);XP(F)
    • Try
      • S(C);
      • Threat
        • S(G)
      • Vars
        • K(c);P_SPINS(e),S_FLIGHT,XP(F)::B(A)
        • Q(b);OGATE,XS(C)::QAR2(E),XQ(b)
        • S(e);::S(C),XP(a)
        • P(d);N_GUARD::S(G)
      • Refutation
        • Q(b);XP(B)
    • Try
      • Q(E);CHECK
      • Vars
        • Q(b);N_GUARD,P_SPINQ(b)::QAR2(E),XQ(b)
      • Refutation
        • Q(b);XQ(E)
  • Actual
    • S(C);
    • Threat
      • S(G)
    • Vars
      • K(c);P_SPINS(e),S_FLIGHT,XP(F)::B(A)
      • Q(b);N_GUARD,XS(C)::QAR2(E)
      • Q(b);SBLOCK,XP(F)::S(C)
      • Q(b);XP(B)::S(C),XQ(b)
      • S(e);N_GUARD::QAB1(E)
      • P(d);N_GUARD::S(G)
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