MESON Chess Problem Database

Problem Display
PID: 108428 (2B1n1b1/8/1pQ2Rpp/R1ppk3/8/2PK2P1/1N2P3/8 w - - 0 1)

Hlinka, Michal

Technike Noviny, 1973

2B1n1b1/8/1pQ2Rpp/R1ppk3/8/2PK2P1/1N2P3/8

#2

9 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Be6
      • 2.Qxe6#
    • 1...Bh7
      • 2.Qe6#
    • 1...Sd6
      • 2.Qxd6#
    • 1...Sxf6
      • 2.Qc7#
    • 1...Sc7
      • 2.Qd6#
    • 1...Sg7
      • 2.Qd6#
    • 1...c4+
      • 2.Sxc4#
    • 1...d4
      • 2.cxd4#
    • 1...g5
      • 2.Rf5#
  • Tries
    • 1.Rf3?
      • threat
        • 2.Re3#
      • 1...c4+
        • 2.Sxc4#
      • 1...Be6
        • 2.Qxe6#
      • 1...Sf6
        • 2.Qxf6#
        • 2.Qc7#
      • 1...d4
        • 2.cxd4#
      • 1...Sd6!
    • 1.Re6+?
      • 1...Bxe6
        • 2.Qxe6#
      • 1...Kf5!
    • 1.Qxe8+?
      • 1...Be6
        • 2.Qxe6#
      • 1...Kxf6!
  • Keys
    • 1.Ke3!
      • threat
        • 2.Sd3#
      • 1...d4+
        • 2.cxd4#
      • 1...Be6
        • 2.Qxe6#
      • 1...Sd6
        • 2.Qxd6#
      • 1...c4
        • 2.Sxc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 5
  • Sets
    • B(h);N_GUARD::QAR1(G),XB(h)
    • B(h);N_GUARD::QAR1(G)
    • S(g);N_GUARD::QAB1(G),XS(g)
    • S(g);N_GUARD,SBLOCK,XR(H)::QAB(G)
    • S(g);N_GUARD::QAB1(G)
    • P(a);CHECK,P_SPINP(b)::S(A),XP(a)
    • P(b);OGATE,P_SPINP(a)::P(C),XP(b)
    • P(e);N_GUARD::R1(H)
  • Tries
    • Try
      • R(H);
      • Threat
        • R(H)
      • Vars
        • P(a);CHECK,P_SPINP(b)::S(A),XP(a)
        • B(h);N_GUARD::QAR1(G),XB(h)
        • P(b);OGATE,P_SPINP(a)::P(C),XP(b)
      • Refutation
        • S(g);
    • Try
      • R(H);CHECK
      • Vars
        • B(h);OGATE,XR(H)::QAR1(G),XB(h)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • Q(G);CHECK,XS(g)
      • Vars
        • B(h);N_GUARD,P_SPINB(h)::QAR1(G),XB(h)
      • Refutation
        • K(c);S_FLIGHT,XR(H)
  • Actual
    • K(D);P-FLIGHT
    • Threat
      • S(A)
    • Vars
      • P(b);CHECK,OGATE,P_SPINP(a)::P(C),XP(b)
      • B(h);N_GUARD::QAR1(G),XB(h)
      • S(g);N_GUARD::QAB1(G),XS(g)
      • P(a);P_SPINP(b)::S(A),XP(a)
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