MESON Chess Problem Database

Problem Display
PID: 199806 (4R3/2N5/1bN5/5R2/3p2b1/1p1k4/1K2pP1n/4Q3 w - - 0 1)

Handloser, Ralf Chris

Problemskak, 2011

4R3/2N5/1bN5/5R2/3p2b1/1p1k4/1K2pP1n/4Q3

#2

7 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Bh3
      • 2.Qxe2#
    • 1...Bxf5
      • 2.Qxe2#
    • 1...Sf3
      • 2.Qxe2#
  • Tries
    • 1.Rf3+?
      • 1...Kc4
        • 2.Qb4#
        • 2.Qc1#
      • 1...Sxf3
        • 2.Qxe2#
      • 1...Bxf3!
    • 1.Rd5?
      • threat
        • 2.Qc3#
      • 1...Kc4
        • 2.Se5#
      • 1...Ba5
        • 2.Rxd4#
      • 1...Be6!
    • 1.Re3+?
      • 1...Kc4
        • 2.Qb4#
        • 2.Qc1#
      • 1...dxe3!
  • Keys
    • 1.Rf4!
      • threat
        • 2.Se5#
      • 1...Kc4
        • 2.Qc3#
      • 1...Bxc7
        • 2.Rxd4#
      • 1...Sf3
        • 2.Qxe2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • B(f);N_GUARD::QAB1(A),XP(a)
    • B(f);N_GUARD,XR(D)::QAB1(A),XP(a)
    • S(b);S_CUTB(f)::QAB1(A),XP(a)
  • Tries
    • Try
      • R(D);CHECK
      • Vars
        • S(b);XR(D)::QAB1(A),XP(a)
      • Refutation
        • B(f);XR(D)
    • Try
      • R(D);P_PINP(e)
      • Threat
        • QAR1(A)
      • Vars
        • K(d);N_SPINP(e),S_FLIGHT::S(E)
        • B(g);N_GUARD::R1(D),XP(e)
      • Refutation
        • B(f);
    • Try
      • R(G);CHECK
      • Refutation
        • P(e);XR(G)
  • Actual
    • R(D);
    • Threat
      • S(E)
    • Vars
      • K(d);P_SPINP(e),S_FLIGHT::QAR1(A)
      • B(g);N_GUARD,XS(F)::R1(D),XP(e)
      • S(b);S_CUTB(f)::QAB1(A),XP(a)
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