MESON Chess Problem Database

Problem Display
PID: 52812 (RNK1k3/2p2R1n/P4pP1/1P5r/B7/3pB3/2b5/1r2Q3 w - - 0 1)

Maleika, Gerhard

Die Schwalbe, 2004

RNK1k3/2p2R1n/P4pP1/1P5r/B7/3pB3/2b5/1r2Q3

#2

10 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Rb2
      • 2.Bg5#
    • 1...Rb3
      • 2.Bg5#
    • 1...Rbxb5
      • 2.Bg5#
    • 1...Rhxb5
      • 2.Bc1#
    • 1...Rh6
      • 2.Bc1#
    • 1...f5
      • 2.Bc1#
  • Tries
    • 1.Re7+?
      • 1...Kxe7
        • 2.Bc5#
      • 1...Kf8!
    • 1.b6+?
      • 1...Rbb5
        • 2.Bg5#
      • 1...Rhb5
        • 2.Bc1#
      • 1...c6
        • 2.Bxc6#
      • 1...Bxa4!
  • Keys
    • 1.Kxc7!
      • threat
        • 2.Sc6#
        • 2.Sd7#
      • 1...Rc5+
        • 2.Sc6#
      • 1...Rbxb5
        • 2.Bg5#
      • 1...Rhxb5
        • 2.Bc1#
      • 1...Rd5
        • 2.Sd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • R(a);N_GUARD::QAR(A)+B(B)
    • R(a);N_GUARD,P_SPINR(a),XP(D)::QAR(A)+B(B)
    • R(d);N_GUARD,P_SPINR(d),XP(D)::QAR(A)+B(B)
    • R(d);N_GUARD::QAR(A)+B(B)
    • P(e);S_CUTR(d)::QAR(A)+B(B)
  • Tries
    • Try
      • R(G);CHECK
      • Vars
        • K(h);P-FLIGHT,XR(G)::QAR(A)+B(B),DCHECK
      • Refutation
        • K(h);P-FLIGHT
    • Try
      • P(D);CHECK
      • Vars
        • R(a);P_SPINR(a)::QAR(A)+B(B)
        • R(d);P_SPINR(d)::QAR(A)+B(B)
        • P(f);P_SPINP(f)::B(C),XP(f)
      • Refutation
        • B(b);XB(C)
  • Actual
    • K(J);P-FLIGHT,XP(f)
    • Threat
      • DUALS(2)
    • Vars
      • R(d);CHECK::R(H)+S(I)
      • R(a);N_GUARD,P_SPINR(a),XP(D)::QAR(A)+B(B)
      • R(d);N_GUARD,P_SPINR(d),XP(D)::QAR(A)+B(B)
      • R(d);::R(H)+S(I)
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