MESON Chess Problem Database

Problem Display
PID: 229346 (K7/4b2Q/5BnN/R7/3Nkpr1/1pR3p1/4B2n/7b w - - 0 1)

Guida, Marco

Rice, John Michael

The Problemist, 2020

K7/4b2Q/5BnN/R7/3Nkpr1/1pR3p1/4B2n/7b

#2

8 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Rh4
      • 2.Qxg6#
    • 1...Ba3
      • 2.Qb7#
    • 1...Bb4
      • 2.Qb7#
    • 1...Bc5
      • 2.Qb7#
    • 1...Bd6
      • 2.Qb7#
    • 1...Bd8
      • 2.Qb7#
    • 1...Bf8
      • 2.Qb7#
  • Tries
    • 1.Sc2?
      • threat
        • 2.Rc4#
        • 2.Re5#
      • 1...Bxf6
        • 2.Qb7#
      • 1...Bc5
        • 2.Qb7#
      • 1...f3
        • 2.Rc4#
      • 1...Rg5
        • 2.Rc4#
      • 1...Bd6
        • 2.Rc4#
        • 2.Qb7#
      • 1...Sf3
        • 2.Bd3#
      • 1...bxc2!
    • 1.Se6?
      • threat
        • 2.Re5#
      • 1...Bxf6
        • 2.Qb7#
      • 1...Bc5
        • 2.Qb7#
      • 1...Rg5
        • 2.Sxg5#
      • 1...Bd6
        • 2.Qb7#
      • 1...Sf3!
    • 1.Shf5?
      • threat
        • 2.Bd3#
      • 1...Bc5
        • 2.Qb7#
      • 1...Se5
        • 2.Rxe5#
      • 1...f3!
    • 1.Qxe7+?
      • 1...Se5
        • 2.Qxe5#
      • 1...Sxe7!
  • Keys
    • 1.Sdf5!
      • threat
        • 2.Rc4#
      • 1...Bxf6
        • 2.Qb7#
      • 1...Bc5
        • 2.Qb7#
      • 1...Sf3
        • 2.Bd3#
      • 1...Se5
        • 2.Rxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 6
  • Sets
    • R(g);N_GUARD::QAB(G),XS(h)
    • B(i);OGATE::QAB(G)
  • Tries
    • Try
      • S(C);
      • Threat
        • DUALS(2)
      • Vars
        • B(i);OGATE,XB(E)::QAB(G)
        • B(i);OGATE::QAB(G)
        • P(f);::R(B)
        • R(g);::R(B)
        • S(b);SBLOCK::B(A)
      • Refutation
        • P(c);XS(C)
    • Try
      • S(C);
      • Threat
        • R1(D)
      • Vars
        • B(i);OGATE,XB(E)::QAB(G)
        • B(i);OGATE::QAB(G)
        • R(g);N_GUARD::S(C),XR(g)
      • Refutation
        • S(b);
    • Try
      • S(F);N_PINS(h)
      • Threat
        • B(A)
      • Vars
        • B(i);OGATE::QAB(G)
        • S(h);N_GUARD::R1(D),XS(h)
      • Refutation
        • P(f);
    • Try
      • Q(G);CHECK,N_PINS(h),XB(i)
      • Vars
        • S(h);N_GUARD,P_SPINS(h)::QAR1(G),XS(h)
      • Refutation
        • S(h);XQ(G)
  • Actual
    • S(C);N_PINS(h)
    • Threat
      • R(B)
    • Vars
      • B(i);OGATE,XB(E)::QAB(G)
      • B(i);OGATE::QAB(G)
      • S(b);SBLOCK::B(A)
      • S(h);N_GUARD::R1(D),XS(h)
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