MESON Chess Problem Database

Problem Display
PID: 240255 (1K6/6pp/1Qp1R1N1/3P2p1/p1PB4/3P1kPB/Rn5P/br6 w - - 0 1)

Heyl, Peter

Problem-Forum, 2004

1K6/6pp/1Qp1R1N1/3P2p1/p1PB4/3P1kPB/Rn5P/br6

#2

12 + 9

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Sd1
      • 2.Se5#
    • 1...Sxd3
      • 2.Re3#
    • 1...Sxc4
      • 2.Rf2#
    • 1...g4
      • 2.Sh4#
  • Tries
    • 1.Bg1?
      • threat
        • 2.Re3#
        • 2.Qf2#
        • 2.Qe3#
      • 1...Rxg1
        • 2.Qe3#
      • 1...Sxd3
        • 2.Re3#
      • 1...Sxc4
        • 2.Rf2#
      • 1...Re1
        • 2.Qf2#
      • 1...Rf1
        • 2.Re3#
        • 2.Qe3#
      • 1...c5
        • 2.Re3#
      • 1...Sd1!
    • 1.Re4?
      • threat
        • 2.Se5#
      • 1...Sxd3
        • 2.Bg2#
        • 2.Re3#
      • 1...Sxc4
        • 2.Bg2#
        • 2.Bg4#
        • 2.Rf2#
      • 1...hxg6!
    • 1.Qb4?
      • threat
        • 2.Qf8#
      • 1...Sxd3
        • 2.Re3#
      • 1...Sxc4
        • 2.Rf2#
      • 1...Sd1
        • 2.Se5#
      • 1...c5!
    • 1.d6?
      • threat
        • 2.Qxc6#
      • 1...Sxd3
        • 2.Re3#
      • 1...Sxc4
        • 2.Rf2#
      • 1...Sd1
        • 2.Se5#
      • 1...c5
        • 2.Qc6#
        • 2.Qb7#
      • 1...Re1!
  • Keys
    • 1.Qb7!
      • threat
        • 2.Qf7#
      • 1...Sxd3
        • 2.Re3#
      • 1...Sxc4
        • 2.Rf2#
      • 1...Sd1
        • 2.Se5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 1
  • Sets
    • S(c);P_PINQ(I)::S(K)
    • S(c);P_PINQ(I),XP(C)::R1(J)
    • S(c);OGATE,P_PINQ(I),XP(F)::R1(A)
    • P(f);N_GUARD::S(K)
  • Tries
    • Try
      • B(G);
      • Threat
        • DUALS(3)
      • Vars
        • R(b);XB(G)::QAR1(I)
        • S(c);P_PINQ(I),XP(C)::R1(J)
        • S(c);OGATE,P_PINQ(I),XP(F)::R1(A)
        • R(b);::QAR1(I)
        • P(g);::R1(J)
      • Refutation
        • S(c);P_PINQ(I)
    • Try
      • R(J);
      • Threat
        • S(K)
      • Refutation
        • P(i);XS(K)
    • Try
      • Q(I);
      • Threat
        • QAR(I)
      • Vars
        • S(c);P_PINQ(I),XP(C)::R1(J)
        • S(c);OGATE,P_PINQ(I),XP(F)::R1(A)
        • S(c);P_PINQ(I)::S(K)
      • Refutation
        • P(g);
    • Try
      • P(H);
      • Threat
        • QAB(I),XP(g)
      • Vars
        • S(c);P_PINQ(I),XP(C)::R1(J)
        • S(c);OGATE,P_PINQ(I),XP(F)::R1(A)
        • S(c);P_PINQ(I)::S(K)
      • Refutation
        • R(b);
  • Actual
    • Q(I);
    • Threat
      • QAR(I)
    • Vars
      • S(c);P_PINQ(I),XP(C)::R1(J)
      • S(c);OGATE,P_PINQ(I),XP(F)::R1(A)
      • S(c);P_PINQ(I)::S(K)
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