MESON Chess Problem Database

Problem Display
PID: 55074 (2b4b/2r4p/4p2R/q2p3K/nrp5/1p3N2/3R1P2/QBk5 w - - 0 1)

Lewis, Robert Tony

The Problemist Supplement, 2004

2b4b/2r4p/4p2R/q2p3K/nrp5/1p3N2/3R1P2/QBk5

#2

7 + 12

SOLUTION

  • SOUND
  • Sets
    • 1...Rg7
      • 2.Ba2#
      • 2.Bc2#
      • 2.Bd3#
      • 2.Be4#
      • 2.Bf5#
      • 2.Bg6#
      • 2.Bxh7#
    • 1...Sb2
      • 2.Ba2#
    • 1...Sc3
      • 2.Qb2#
    • 1...c3
      • 2.Ba2#
      • 2.Bc2#
      • 2.Bd3#
      • 2.Be4#
      • 2.Bf5#
      • 2.Bg6#
      • 2.Bxh7#
    • 1...d4+
      • 2.Bf5#
    • 1...e5
      • 2.Ba2#
      • 2.Bc2#
      • 2.Bd3#
      • 2.Be4#
      • 2.Bf5#
      • 2.Bg6#
      • 2.Bxh7#
  • Tries
    • 1.Kg5?
      • threat
        • 2.Rh1#
      • 1...Rg7+
        • 2.Bg6#
      • 1...d4+
        • 2.Bf5#
      • 1...Sb2
        • 2.Ba2#
      • 1...Sc3
        • 2.Qb2#
      • 1...Bf6+!
    • 1.Rg6?
      • threat
        • 2.Rg1#
      • 1...d4+
        • 2.Bf5#
      • 1...Rg7
        • 2.Ba2#
        • 2.Bc2#
        • 2.Bd3#
        • 2.Be4#
        • 2.Bf5#
      • 1...Sb2
        • 2.Ba2#
      • 1...Sc3
        • 2.Qb2#
      • 1...hxg6+!
  • Keys
    • 1.Kg4!
      • threat
        • 2.Rh1#
      • 1...Rg7+
        • 2.Bg6#
      • 1...c3+
        • 2.Be4#
      • 1...e5+
        • 2.Bf5#
      • 1...Sb2
        • 2.Ba2#
      • 1...Sc3
        • 2.Qb2#

This is after 9498

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • S(c);S_CUTB(l)::QAR(A)+B(B)
    • S(c);N_GUARD,S_CUTB(l)::QAB1(A)
    • P(g);CHECK,S_CUTB(l)::QAR(A)+B(B)
  • Tries
    • Try
      • K(F);P-FLIGHT
      • Threat
        • R(G)
      • Vars
        • R(i);CHECK,S_CUTB(l)::QAR(A)+B(B)
        • P(g);CHECK,S_CUTB(l)::QAR(A)+B(B)
        • S(c);S_CUTB(l)::QAR(A)+B(B)
        • S(c);N_GUARD,S_CUTB(l)::QAB1(A)
      • Refutation
        • B(l);CHECK
    • Try
      • R(G);
      • Threat
        • R(G)
      • Vars
        • P(g);CHECK,S_CUTB(l)::QAR(A)+B(B)
        • S(c);S_CUTB(l)::QAR(A)+B(B)
        • S(c);N_GUARD,S_CUTB(l)::QAB1(A)
      • Refutation
        • P(j);CHECK,XR(G)
  • Actual
    • K(F);S_FLIGHT
    • Threat
      • R(G)
    • Vars
      • R(i);CHECK,S_CUTB(l)::QAR(A)+B(B)
      • P(e);CHECK,S_CUTB(l)::QAR(A)+B(B)
      • P(h);CHECK,S_CUTB(l)::QAR(A)+B(B)
      • S(c);S_CUTB(l)::QAR(A)+B(B)
      • S(c);N_GUARD,S_CUTB(l)::QAB1(A)
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