MESON Chess Problem Database

Problem Display
PID: 235218 (B1b5/1n2n1Pp/R2p1R1p/1QN2p1k/5P2/1P5P/2r1p1P1/4B2K w - - 0 1)

Heyl, Peter

Schach-Aktiv, 2003

B1b5/1n2n1Pp/R2p1R1p/1QN2p1k/5P2/1P5P/2r1p1P1/4B2K

#2

12 + 10

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rc1
      • 2.Qxe2#
    • 1...Rxc5
      • 2.Qxe2#
    • 1...Sa5
      • 2.Bf3#
    • 1...Sxc5
      • 2.Bf3#
    • 1...Sd8
      • 2.Bf3#
    • 1...Sd5
      • 2.Qe8#
    • 1...Sg8
      • 2.Qe8#
    • 1...dxc5
      • 2.Rxh6#
    • 1...d5
      • 2.Rxh6#
  • Tries
    • 1.Sd3?
      • threat
        • 2.g4#
      • 1...Sc5
        • 2.Bf3#
      • 1...Sd5
        • 2.Qe8#
      • 1...d5
        • 2.Rxh6#
      • 1...Rc5!
    • 1.Se4?
      • threat
        • 2.g4#
      • 1...Rc5
        • 2.Qxe2#
      • 1...Sd5
        • 2.Qe8#
      • 1...d5
        • 2.Rxh6#
      • 1...Sc5!
    • 1.Se6?
      • threat
        • 2.g4#
      • 1...Rc5
        • 2.Qxe2#
      • 1...Sc5
        • 2.Bf3#
      • 1...Sd5
        • 2.Qe8#
      • 1...d5!
    • 1.Sxb7?
      • threat
        • 2.g4#
      • 1...Rc5
        • 2.Qxe2#
      • 1...Sd5
        • 2.Qe8#
      • 1...d5
        • 2.Rxh6#
      • 1...Bxb7!
    • 1.Sd7?
      • threat
        • 2.g4#
      • 1...Rc5
        • 2.Qxe2#
      • 1...Sc5
        • 2.Bf3#
      • 1...d5
        • 2.Rxh6#
      • 1...Sd5!
    • 1.g8S?
      • threat
        • 2.Rxh6#
      • 1...Sxg8
        • 2.Qe8#
      • 1...Sg6!
  • Keys
    • 1.Sa4!
      • threat
        • 2.g4#
      • 1...Rc5
        • 2.Qxe2#
      • 1...Sc5
        • 2.Bf3#
      • 1...Sd5
        • 2.Qe8#
      • 1...d5
        • 2.Rxh6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 5
  • Sets
    • R(a);N_GUARD,P_PINB(A)::QAB(G),XP(b)
    • R(a);N_GUARD,XS(H)::QAB(G),XP(b)
    • S(g);OGATE::B(L)
    • S(g);OGATE,XS(H)::B(L)
    • S(h);N_GUARD::QAB(G)
    • P(e);XS(H)::R1(J),XP(f)
    • P(e);::R1(J),XP(f)
  • Tries
    • Try
      • S(H);P_PINP(c)
      • Threat
        • P(C)
      • Vars
        • S(g);N_SPINP(c),OGATE::B(L)
        • S(h);N_GUARD,N_SPINP(c)::QAB(G)
        • P(e);N_SPINP(c)::R1(J),XP(f)
      • Refutation
        • R(a);N_SPINP(c)
    • Try
      • S(H);P_PINP(c)
      • Threat
        • P(C)
      • Vars
        • R(a);N_GUARD,N_SPINP(c)::QAB(G),XP(b)
        • S(h);N_GUARD,N_SPINP(c)::QAB(G)
        • P(e);N_SPINP(c)::R1(J),XP(f)
      • Refutation
        • S(g);N_SPINP(c)
    • Try
      • S(H);P_PINP(c)
      • Threat
        • P(C)
      • Vars
        • R(a);N_GUARD,N_SPINP(c)::QAB(G),XP(b)
        • S(g);N_SPINP(c),OGATE::B(L)
        • S(h);N_GUARD,N_SPINP(c)::QAB(G)
      • Refutation
        • P(e);N_SPINP(c)
    • Try
      • S(H);P_PINP(c),XS(g)
      • Threat
        • P(C)
      • Vars
        • R(a);N_GUARD,N_SPINP(c)::QAB(G),XP(b)
        • S(h);N_GUARD,N_SPINP(c)::QAB(G)
        • P(e);N_SPINP(c)::R1(J),XP(f)
      • Refutation
        • B(j);P_PINP(C),XS(H)
    • Try
      • S(H);P_PINP(c)
      • Threat
        • P(C)
      • Vars
        • R(a);N_GUARD,N_SPINP(c)::QAB(G),XP(b)
        • S(g);N_SPINP(c),OGATE::B(L)
        • P(e);N_SPINP(c)::R1(J),XP(f)
      • Refutation
        • S(h);N_SPINP(c)
    • Try
      • P(K);
      • Threat
        • R1(J),XP(f)
      • Vars
        • S(h);N_GUARD,XS(K)::QAB(G)
      • Refutation
        • S(h);
  • Actual
    • S(H);P_PINP(c)
    • Threat
      • P(C)
    • Vars
      • R(a);N_GUARD,N_SPINP(c)::QAB(G),XP(b)
      • S(g);N_SPINP(c),OGATE::B(L)
      • S(h);N_GUARD,N_SPINP(c)::QAB(G)
      • P(e);N_SPINP(c)::R1(J),XP(f)
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