MESON Chess Problem Database

Problem Display
PID: 251637 (1Q6/8/1r4p1/1q3kNn/3PN2K/4P1B1/5PPP/8 w - - 0 1)

Rice, John Michael

The Problemist, 2021

1Q6/8/1r4p1/1q3kNn/3PN2K/4P1B1/5PPP/8

#2

10 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Qf1
      • 2.Qe5#
    • 1...Qe2
      • 2.Qe5#
    • 1...Qd3
      • 2.Qe5#
    • 1...Qa4
      • 2.Qe5#
    • 1...Qc4
      • 2.Qe5#
    • 1...Qa6
      • 2.Qe5#
    • 1...Qc6
      • 2.Qe5#
    • 1...Qd7
      • 2.Qe5#
    • 1...Qb1
      • 2.Qe5#
    • 1...Qb2
      • 2.Qe5#
    • 1...Qb3
      • 2.Qe5#
    • 1...Qb4
      • 2.Qe5#
    • 1...Qe5
      • 2.Qxe5#
    • 1...Ra6
      • 2.Qxb5#
    • 1...Rf6
      • 2.Qxb5#
    • 1...Sxg3
      • 2.Qf4#
    • 1...Sf4
      • 2.Qxf4#
    • 1...Sf6
      • 2.Qf4#
    • 1...Sg7
      • 2.Qf4#
  • Tries
    • 1.Sd6+?
      • 1...Kf6
        • 2.Qf8#
      • 1...Rxd6!
    • 1.Bf4?
      • threat
        • 2.g4#
      • 1...Qe2
        • 2.Qe5#
      • 1...Sf6
        • 2.Sg3#
      • 1...Sg3!
    • 1.Be5?
      • threat
        • 2.g4#
      • 1...Sg3
        • 2.Sxg3#
      • 1...Sf6
        • 2.Sg3#
      • 1...Qe2!
    • 1.Qc8+?
      • 1...Re6
        • 2.Qxe6#
      • 1...Qd7!
    • 1.Qf8+?
      • 1...Rf6
        • 2.Sd6#
      • 1...Sf6!
  • Keys
    • 1.Bd6!
      • threat
        • 2.g4#
      • 1...Qe2
        • 2.Qc8#
      • 1...Sg3
        • 2.Qf8#
      • 1...Sf6
        • 2.Sg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 0
    • REMOVED MATES = 16
  • Sets
    • Q(a);N_GUARD::QAR1(J)
    • Q(a);N_GUARD::QAR1(J),XQ(a)
    • R(d);OGATE::QAR(J),XQ(a)
    • S(c);N_GUARD,XB(E)::QAR1(J)
    • S(c);N_GUARD::QAR1(J),XS(c)
    • S(c);N_GUARD::QAR1(J)
  • Tries
    • Try
      • S(G);CHECK
      • Vars
        • K(b);P-FLIGHT::QAR2(J)
      • Refutation
        • R(d);XS(G)
    • Try
      • B(E);
      • Threat
        • P(B)
      • Vars
        • Q(a);N_GUARD::QAR1(J)
        • S(c);N_GUARD,SBLOCK::S(G)
      • Refutation
        • S(c);
    • Try
      • B(E);
      • Threat
        • P(B)
      • Vars
        • S(c);N_GUARD::S(G),XS(c)
        • S(c);N_GUARD::S(G)
      • Refutation
        • Q(a);
    • Try
      • Q(J);CHECK
      • Vars
        • R(d);N_GUARD,P_SPINR(d)::QAB1(J),XR(d)
      • Refutation
        • Q(a);P_SPINQ(a)
    • Try
      • Q(J);CHECK
      • Vars
        • R(d);P_SPINR(d)::S(G)
      • Refutation
        • S(c);P_SPINS(c)
  • Actual
    • B(E);
    • Threat
      • P(B)
    • Vars
      • Q(a);N_GUARD::QAB(J)
      • S(c);N_GUARD::QAR(J)
      • S(c);N_GUARD,SBLOCK::S(G)
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