MESON Chess Problem Database

Problem Display
PID: 158320 (1B6/4r2b/2B5/8/1PpkPR2/2n4R/n4P1K/6Q1 w - - 0 1)

Rice, John Michael

British Chess Magazine, 2000

1B6/4r2b/2B5/8/1PpkPR2/2n4R/n4P1K/6Q1

#2

9 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Rxe4
      • 2.Qg7#
    • 1...Rg7
      • 2.Qxg7#
    • 1...Sd1
      • 2.Qxd1#
    • 1...Se2
      • 2.Qd1#
    • 1...Sa4
      • 2.Qd1#
    • 1...Sxe4
      • 2.Qd1#
    • 1...Sb5
      • 2.Qd1#
    • 1...Sd5
      • 2.Qd1#
  • Tries
    • 1.Rg4?
      • threat
        • 2.f4#
      • 1...Sxe4
        • 2.Qd1#
      • 1...Sd1
        • 2.Qxd1#
      • 1...Se2
        • 2.Qd1#
      • 1...Sd5
        • 2.Qd1#
      • 1...Rxe4!
    • 1.Rf5?
      • threat
        • 2.f4#
      • 1...Rxe4
        • 2.Ba7#
      • 1...Sxe4
        • 2.Rd5#
      • 1...Rg7
        • 2.Be5#
        • 2.Qxg7#
      • 1...Sd1
        • 2.Qxd1#
      • 1...Se2
        • 2.Qd1#
      • 1...Sd5!
    • 1.Qe1?
      • threat
        • 2.Qd2#
        • 2.Qe3#
      • 1...Sxb4
        • 2.Qe3#
      • 1...Sc1
        • 2.Qxc3#
        • 2.Qe3#
      • 1...Sb1
        • 2.Qe3#
      • 1...Sd1
        • 2.Qd2#
        • 2.Qxd1#
      • 1...Se2
        • 2.Qd2#
        • 2.Qd1#
      • 1...Sd5
        • 2.Qd2#
        • 2.Qd1#
      • 1...Rc7!
    • 1.Qg7+?
      • 1...Re5
        • 2.Bxe5#
        • 2.Ba7#
        • 2.Qxe5#
      • 1...Rxg7!
    • 1.e5+?
      • 1...Se4
        • 2.Qd1#
      • 1...Be4!
  • Keys
    • 1.Rfh4!
      • threat
        • 2.f4#
      • 1...Rxe4
        • 2.Qg7#
      • 1...Sxe4
        • 2.Qd1#
      • 1...Rg7
        • 2.Qxg7#
      • 1...Sd1
        • 2.Qxd1#
      • 1...Se2
        • 2.Qd1#
      • 1...Sd5
        • 2.Qd1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 2
  • Sets
    • R(e);N_GUARD,P_SPINR(e),XP(F)::QAB(A)
    • R(e);N_GUARD::QAB(A),XR(e)
    • S(b);N_GUARD::QAR(A),XS(b)
    • S(b);N_GUARD::QAR(A)
    • S(b);N_GUARD,P_SPINS(b),XP(F)::QAR(A)
  • Tries
    • Try
      • R(G);
      • Threat
        • QAB(A)+P(B)
      • Vars
        • S(b);N_GUARD,P_SPINS(b),XP(F)::QAR(A)
        • S(b);N_GUARD::QAR(A),XS(b)
        • S(b);N_GUARD::QAR(A)
      • Refutation
        • R(e);P_SPINR(e),XP(F)
    • Try
      • R(G);
      • Threat
        • QAB(A)+P(B)
      • Vars
        • R(e);N_GUARD,XP(F)::B(I)
        • S(b);N_GUARD,SBLOCK,XP(F)::R1(G)
        • S(b);N_GUARD::QAR(A),XS(b)
        • S(b);N_GUARD::QAR(A)
      • Refutation
        • S(b);
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • S(a);XP(E)::QAB1(A)
        • S(b);::QAB1(A)
      • Refutation
        • R(e);
    • Try
      • Q(A);CHECK
      • Refutation
        • R(e);XQ(A)
    • Try
      • P(F);CHECK
      • Vars
        • S(b);P_SPINS(b)::QAR(A)
      • Refutation
        • B(f);P_SPINB(f)
  • Actual
    • R(G);
    • Threat
      • QAB(A)+P(B)
    • Vars
      • R(e);N_GUARD,P_SPINR(e),XP(F)::QAB(A)
      • S(b);N_GUARD,P_SPINS(b),XP(F)::QAR(A)
      • R(e);N_GUARD::QAB(A),XR(e)
      • S(b);N_GUARD::QAR(A),XS(b)
      • S(b);N_GUARD::QAR(A)
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