MESON Chess Problem Database

Problem Display
PID: 107597 (4K3/3Np2p/4k2B/2P2pRP/8/2N2rn1/2b3Q1/8 w - - 0 1)

Armeni, Alberto

Scacco!, 1993

4K3/3Np2p/4k2B/2P2pRP/8/2N2rn1/2b3Q1/8

#2

8 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rf1
      • 2.Qd5#
      • 2.Qc6#
    • 1...Rf2
      • 2.Qd5#
      • 2.Qc6#
    • 1...Rxc3
      • 2.Qc6#
    • 1...Re3
      • 2.Qd5#
      • 2.Qc6#
    • 1...Rf4
      • 2.Qd5#
      • 2.Qc6#
    • 1...f4
      • 2.Re5#
  • Tries
    • 1.Qxf3?
      • threat
        • 2.Qd5#
        • 2.Qc6#
      • 1...Bb3
        • 2.Qc6#
      • 1...Ba4
        • 2.Qd5#
      • 1...Se4
        • 2.Qxf5#
      • 1...Be4!
  • Keys
    • 1.Rxf5!
      • threat
        • 2.Re5#
      • 1...Kxf5
        • 2.Qh3#
      • 1...Rxf5
        • 2.Qc6#
      • 1...Bxf5
        • 2.Qa2#
      • 1...Sxf5
        • 2.Qg8#
      • 1...Re3
        • 2.Qd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 2
  • Sets
    • R(b);OGATE,XS(B)::QAR2(A)
    • P(d);OGATE::R1(D)
  • Tries
    • Try
      • Q(A);XR(b)
      • Threat
        • DUALS(2)
      • Vars
        • B(a);::QAR2(A)
        • B(a);P_PINS(G)::QAB1(A)
        • S(c);N_GUARD,S_CUTB(a)::QAB1(A),XP(d)
      • Refutation
        • B(a);
  • Actual
    • R(D);XP(d)
    • Threat
      • R1(D)
    • Vars
      • K(e);OGATEB,S_FLIGHT,XR(D)::QAB(A)
      • R(b);OGATE,SBLOCK,XR(D)::QAR2(A)
      • B(a);OGATE,SBLOCK,XR(D)::QAB(A)
      • S(c);OGATE,SBLOCK,XR(D)::QAB(A)
      • R(b);OGATE::QAB1(A)
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