MESON Chess Problem Database

Problem Display
PID: 140465 (8/3B1p2/3p1K2/1N1kP3/1pnP1pQ1/2R1rP2/8/6B1 w - - 0 1)

Rallo, Vito

L'Italia Scacchistica, 2001

8/3B1p2/3p1K2/1N1kP3/1pnP1pQ1/2R1rP2/8/6B1

#2

9 + 7

6490 yacpdb 2011

SOLUTION

  • SOUND
  • Sets
    • 1...Re1
      • 2.Sc7#
    • 1...Re2
      • 2.Sc7#
    • 1...Rxc3
      • 2.Sc7#
    • 1...Rd3
      • 2.Sc7#
    • 1...Rxf3
      • 2.Qxf3#
    • 1...Re4
      • 2.Sc7#
    • 1...Rxe5
      • 2.Sc7#
    • 1...Sb2
      • 2.Bc6#
    • 1...Sd2
      • 2.Bc6#
    • 1...Sa3
      • 2.Bc6#
    • 1...Sb6
      • 2.Bc6#
  • Tries
    • 1.Kxf7?
      • threat
        • 2.Qe6#
      • 1...Rxf3
        • 2.Qxf3#
      • 1...Rxe5
        • 2.Sc7#
      • 1...Sxe5+!
    • 1.Bxe3?
      • threat
        • 2.Sc7#
      • 1...Sxe3
        • 2.Bc6#
      • 1...dxe5!
    • 1.Qg8?
      • threat
        • 2.Qxf7#
        • 2.Qa8#
      • 1...Rxf3
        • 2.Qa8#
      • 1...Rxe5
        • 2.Sc7#
        • 2.Qa8#
      • 1...Sa5
        • 2.Qxf7#
      • 1...Sb6
        • 2.Bc6#
        • 2.Qxf7#
      • 1...Sxe5!
  • Keys
    • 1.Qh5!
      • threat
        • 2.Qxf7#
      • 1...Rxf3
        • 2.Qxf3#
      • 1...Rxe5
        • 2.Sc7#
      • 1...Sxe5
        • 2.Bc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 9
  • Sets
    • R(a);::S(F)
    • R(a);XR(B)::S(F)
    • R(a);OGATE,XP(C)::QAB(E),XR(a)
    • R(a);XP(G)::S(F)
    • S(c);::B(I)
  • Tries
    • Try
      • K(H);P-FLIGHT,XP(g)
      • Threat
        • QAB1(E)
      • Vars
        • R(a);OGATE,XP(C)::QAB(E),XR(a)
        • R(a);XP(G)::S(F)
      • Refutation
        • S(c);CHECK,XP(G)
    • Try
      • B(A);XR(a)
      • Threat
        • S(F)
      • Vars
        • S(c);XB(A)::B(I)
      • Refutation
        • P(f);XP(G)
    • Try
      • Q(E);P_PINP(g)
      • Threat
        • DUALS(2)
      • Vars
        • R(a);XP(C)::QAB(E)
        • S(c);::QAB(E),XP(g)
      • Refutation
        • S(c);XP(G)
  • Actual
    • Q(E);
    • Threat
      • QAB(E),XP(g)
    • Vars
      • R(a);OGATE,XP(C)::QAB(E),XR(a)
      • R(a);P_SPINR(a),XP(G)::S(F)
      • S(c);P_SPINS(c),XP(G)::B(I)
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