MESON Chess Problem Database

Problem Display
PID: 58175 (1B6/2N1P2K/r2b4/3P4/1R1N1k2/3Ppr1p/5P2/6Q1 w - - 0 1)

Righi, Mario

Torre & Cavallo - Scacco!, 2001

1B6/2N1P2K/r2b4/3P4/1R1N1k2/3Ppr1p/5P2/6Q1

#2

10 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Rg3
      • 2.Qxg3#
    • 1...Bxb4
      • 2.Sce6#
    • 1...Bc5
      • 2.Sce6#
    • 1...Bxe7
      • 2.Sce6#
  • Tries
    • 1.Sc6+?
      • 1...Kf5
        • 2.Qg6#
      • 1...Bxb4!
    • 1.Sde6+?
      • 1...Kf5
        • 2.Qg5#
      • 1...Ke5!
    • 1.e8Q?
      • threat
        • 2.Qe4#
      • 1...Rg3
        • 2.Qxg3#
      • 1...Be7
        • 2.Sce6#
      • 1...Be5!
    • 1.e8R?
      • threat
        • 2.Re4#
      • 1...Rg3
        • 2.Qxg3#
      • 1...Be7
        • 2.Sce6#
      • 1...Be5!
  • Keys
    • 1.Kg6!
      • threat
        • 2.Qg5#
      • 1...Rg3+
        • 2.Qxg3#
      • 1...Bxb4+
        • 2.Sce6#
      • 1...Bc5+
        • 2.Sce6#
      • 1...Be5+
        • 2.Sde6#
      • 1...Bxc7+
        • 2.Sc6#
      • 1...Bxe7+
        • 2.Sce6#
      • 1...Ke5
        • 2.Sxf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • R(b);N_GUARD::QAB1(A),XR(b)
    • B(f);XR(D)::B(J)+S(G),DCHECK
    • B(f);::B(J)+S(G),DCHECK
    • B(f);XP(H)::B(J)+S(G),DCHECK
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • K(d);P-FLIGHT::QAB1(A)
      • Refutation
        • B(f);XR(D)
    • Try
      • S(E);CHECK
      • Vars
        • K(d);P-FLIGHT::QAR1(A)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • P(H);
      • Threat
        • QAR1(H)
      • Vars
        • R(b);N_GUARD::QAB1(A),XR(b)
        • B(f);::B(J)+S(G),DCHECK
      • Refutation
        • B(f);
    • Try
      • P(H);
      • Threat
        • R1(H)
      • Vars
        • R(b);N_GUARD::QAB1(A),XR(b)
        • B(f);::B(J)+S(G),DCHECK
      • Refutation
        • B(f);
  • Actual
    • K(I);S_FLIGHT
    • Threat
      • QAB1(A)
    • Vars
      • R(b);CHECK,N_GUARD::QAB1(A),XR(b)
      • B(f);CHECK,XR(D)::B(J)+S(G),DCHECK
      • B(f);CHECK::B(J)+S(G),DCHECK
      • B(f);CHECK,SBLOCK::R(D)+S(E),DCHECK
      • B(f);CHECK,N_GUARD,P_SPINB(f),XS(G)::R(D)+S(E)
      • B(f);CHECK,XP(H)::B(J)+S(G),DCHECK
      • K(d);S_FLIGHT::S(E),XR(b)
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