MESON Chess Problem Database

Problem Display
PID: 134558 (6r1/4pN2/3pRqp1/3p1p2/RNb1Pk1p/3P4/4B3/3n2QK w - - 0 1)

Rice, John Michael

Mat Plus, 2008

6r1/4pN2/3pRqp1/3p1p2/RNb1Pk1p/3P4/4B3/3n2QK

#2

9 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Qa1
      • 2.Qg5#
    • 1...Qb2
      • 2.Qg5#
    • 1...Qc3
      • 2.Qg5#
    • 1...Qd4
      • 2.Qg5#
    • 1...Qe5
      • 2.Qg5#
    • 1...Qg5
      • 2.Qxg5#
    • 1...Qg7
      • 2.Qg5#
    • 1...Qh8
      • 2.Qg5#
    • 1...Qxe6
      • 2.Qg5#
    • 1...Bxd3
      • 2.Sxd3#
      • 2.Sxd5#
    • 1...Bb5
      • 2.Sxd5#
    • 1...Ba6
      • 2.Sxd5#
    • 1...Sb2
      • 2.Qf2#
    • 1...Sf2+
      • 2.Qxf2#
    • 1...Sc3
      • 2.Qf2#
    • 1...Se3
      • 2.Qf2#
      • 2.Qh2#
  • Tries
    • 1.Sc2?
      • threat
        • 2.Qh2#
      • 1...Sf2+
        • 2.Qxf2#
      • 1...fxe4
        • 2.Qg4#
      • 1...Qg5
        • 2.Qxg5#
      • 1...Qxf7!
    • 1.Bxd1?
      • threat
        • 2.Qf2#
      • 1...Qb2
        • 2.Qg5#
      • 1...Qd4
        • 2.Qg5#
      • 1...Qxf7!
    • 1.Rxf6?
      • threat
        • 2.Qg5#
      • 1...Sf2+
        • 2.Qxf2#
      • 1...Bxd3
        • 2.Sxd3#
        • 2.Sxd5#
      • 1...g5
        • 2.Rxf5#
      • 1...exf6!
    • 1.Qf1+?
      • 1...Kg3
        • 2.Qf3#
      • 1...Sf2+
        • 2.Qxf2#
      • 1...Ke3!
    • 1.exd5?
      • threat
        • 2.Qh2#
      • 1...Bxd5+
        • 2.Sxd5#
      • 1...Sf2+
        • 2.Qxf2#
      • 1...Qxe6
        • 2.Qg5#
      • 1...Qe5
        • 2.Qg5#
      • 1...Qg5
        • 2.Qxg5#
      • 1...Qxf7!
    • 1.e5?
      • threat
        • 2.Sxd5#
      • 1...Sf2+
        • 2.Qxf2#
      • 1...Qxe5
        • 2.Qg5#
      • 1...Qxe6
        • 2.Qg5#
      • 1...Sc3
        • 2.Qf2#
      • 1...Se3
        • 2.Qf2#
        • 2.Qh2#
      • 1...d4!
  • Keys
    • 1.exf5!
      • threat
        • 2.Qg4#
      • 1...Sf2+
        • 2.Qxf2#
      • 1...Kxf5
        • 2.Qg4#
      • 1...Qxf5
        • 2.Qh2#
      • 1...Qxe6
        • 2.Qg5#
      • 1...gxf5
        • 2.Sxd5#
      • 1...Qe5
        • 2.Qg5#
      • 1...Qg5
        • 2.Qxg5#
      • 1...Se3
        • 2.Qf2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 10
  • Sets
    • Q(h);N_GUARD::QAB1(A)
    • Q(h);N_GUARD::QAB1(A),XQ(h)
    • Q(h);N_GUARD,XR(H)::QAB1(A)
    • B(b);N_GUARD::S(F),XP(e)
    • S(a);N_GUARD::QAR2(A)
    • S(a);CHECK,N_GUARD::QAR2(A),XS(a)
  • Tries
    • Try
      • S(F);
      • Threat
        • QAB(A)
      • Vars
        • S(a);CHECK,N_GUARD::QAR2(A),XS(a)
        • P(f);N_GUARD,XP(G)::QAR1(A)
        • Q(h);N_GUARD::QAB1(A),XQ(h)
      • Refutation
        • Q(h);XS(I)
    • Try
      • B(C);XS(a)
      • Threat
        • QAR2(A)
      • Vars
        • Q(h);N_GUARD::QAB1(A)
      • Refutation
        • Q(h);XS(I)
    • Try
      • R(H);P_PINP(f),XQ(h)
      • Threat
        • QAB1(A)
      • Vars
        • S(a);CHECK,N_GUARD::QAR2(A),XS(a)
        • P(i);N_GUARD::R1(H),XP(f)
      • Refutation
        • P(j);N_SPINP(f),XR(H)
    • Try
      • Q(A);CHECK
      • Vars
        • K(c);S_FLIGHT::QAR1(A)
        • S(a);CHECK,N_GUARD,P_SPINS(a)::QAR2(A),XS(a)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • P(G);XP(e)
      • Threat
        • QAB(A)
      • Vars
        • B(b);CHECK,XP(G)::R(E)+S(F),DCHECK,XB(b)
        • S(a);CHECK,N_GUARD::QAR2(A),XS(a)
        • Q(h);N_GUARD,XR(H)::QAB1(A)
        • Q(h);N_GUARD::QAB1(A)
        • Q(h);N_GUARD::QAB1(A),XQ(h)
      • Refutation
        • Q(h);XS(I)
    • Try
      • P(G);
      • Threat
        • S(F),XP(e)
      • Vars
        • S(a);CHECK,N_GUARD::QAR2(A),XS(a)
        • Q(h);N_GUARD,XP(G)::QAB1(A)
        • Q(h);N_GUARD,XR(H)::QAB1(A)
        • S(a);N_GUARD::QAR2(A)
      • Refutation
        • P(e);
  • Actual
    • P(G);XP(f)
    • Threat
      • QAR1(A)
    • Vars
      • S(a);CHECK,N_GUARD::QAR2(A),XS(a)
      • K(c);P-FLIGHT,XP(G)::QAB1(A)
      • Q(h);SBLOCK,XP(G)::QAB(A)
      • Q(h);N_GUARD,XR(H)::QAB1(A)
      • P(i);SBLOCK,XP(G)::S(F),XP(e)
      • Q(h);N_GUARD::QAB1(A)
      • Q(h);N_GUARD::QAB1(A),XQ(h)
      • S(a);N_GUARD::QAR2(A)
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