MESON Chess Problem Database

Problem Display
PID: 263104 (1B2B3/6p1/2R4q/r2k4/4p3/1N6/6Qp/b2N3K w - - 0 1)

Moen, Kabe

Shire, David J

5th Comm., SuperProblem, 2020

1B2B3/6p1/2R4q/r2k4/4p3/1N6/6Qp/b2N3K

#2

7 + 7

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Qe3
      • 2.Sxe3#
    • 1...Qh4
      • 2.Se3#
    • 1...Qh5
      • 2.Se3#
    • 1...Qe6
      • 2.Se3#
    • 1...Qf6
      • 2.Se3#
    • 1...Qg6
      • 2.Se3#
    • 1...Qh7
      • 2.Se3#
    • 1...Qh8
      • 2.Se3#
    • 1...Bc3
      • 2.Sxc3#
    • 1...g5
      • 2.Se3#
  • Tries
    • 1.Qc2?
      • threat
        • 2.Qc4#
      • 1...Qxc6
        • 2.Qxc6#
      • 1...Qc1
        • 2.Bf7#
      • 1...Ra4
        • 2.Qc5#
      • 1...Rc5
        • 2.Qxc5#
      • 1...Bc3
        • 2.Sxc3#
      • 1...Qd6!
    • 1.Qd2+?
      • 1...Bd4
        • 2.Sc3#
        • 2.Qxd4#
      • 1...Qxd2!
    • 1.Qg5+?
      • 1...Be5
        • 2.Sc3#
        • 2.Se3#
        • 2.Qxe5#
      • 1...Qxg5!
  • Keys
    • 1.Qg6!
      • threat
        • 2.Bf7#
      • 1...Qxg6
        • 2.Se3#
      • 1...Qf4
        • 2.Qe6#
      • 1...Qh3
        • 2.Qd6#
      • 1...Ra7
        • 2.Rc5#
      • 1...Bf6
        • 2.Qf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 9
  • Sets
    • Q(f);N_GUARD::S(A),XQ(f)
    • Q(f);N_GUARD::S(A)
    • B(a);N_GUARD::S(A),XB(a)
    • P(g);S_CUTQ(f)::S(A)
  • Tries
    • Try
      • Q(C);N_PINP(c)
      • Threat
        • QAB1(C)
      • Vars
        • Q(f);OGATE,XR(E)::QAB1(C),XQ(f)
        • Q(f);N_GUARD,P_PINS(A)::B(G)
        • R(d);N_GUARD::QAR1(C)
        • R(d);N_GUARD::QAR1(C),XR(d)
        • B(a);N_GUARD::S(A),XB(a)
      • Refutation
        • Q(f);
    • Try
      • Q(C);CHECK,N_PINP(c)
      • Refutation
        • Q(f);XQ(C)
    • Try
      • Q(C);CHECK,N_PINP(c)
      • Refutation
        • Q(f);XQ(C)
  • Actual
    • Q(C);N_PINP(c)
    • Threat
      • B(G)
    • Vars
      • Q(f);N_GUARD,XQ(C)::S(A)
      • Q(f);N_GUARD::QAB1(C)
      • Q(f);N_GUARD::QAR1(C)
      • R(d);N_GUARD::R1(E)
      • B(a);S_CUTQ(f)::QAB(C)
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