MESON Chess Problem Database

Problem Display
PID: 264238 (1N5r/1n2p1P1/R1Nrk1P1/4P3/3p1P2/6p1/4P1Q1/3K2bb w - - 0 1)

Pesta, Roman

Prace, 1953

1N5r/1n2p1P1/R1Nrk1P1/4P3/3p1P2/6p1/4P1Q1/3K2bb

#2

10 + 9

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Rd5
      • 2.Sxd4#
    • 1...Rd7
      • 2.Sxd4#
    • 1...Rdd8
      • 2.Sxd4#
    • 1...Bh2
      • 2.Sxd4#
  • Keys
    • 1.e4!
      • threat
        • 2.f5#
      • 1...dxe4 ep+
        • 2.Sd4#
      • 1...Rxc6
        • 2.Qa2#
      • 1...Rxb8
        • 2.Qh3#
      • 1...Rh5
        • 2.g8Q#
        • 2.g8B#
      • 1...Rf8
        • 2.gxf8S#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 4
  • Sets
    • R(e);::R(F)+S(G),DCHECK,XP(d)
    • B(a);N_GUARD::S(G),XP(d)
  • Actual
    • P(B);
    • Threat
      • P(D)
    • Vars
      • P(d);CHECK,EP,S_CUTB(a),XP(B)::S(G)
      • R(e);N_GUARD,P_SPINR(e),XS(G)::QAB(C)
      • R(i);N_GUARD,XS(J)::QAB(C)
      • R(i);N_GUARD::P=Q
      • R(i);OGATE::PXR(i)=S
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