MESON Chess Problem Database

Problem Display
PID: 245154 (8/N2p2p1/1B4Pb/1P1NP1p1/2k2nQ1/p1p1PB1p/P1P3pP/6K1 w - - 0 1)

Maleika, Gerhard

Scacchi e Scienze Applicate, 2010

8/N2p2p1/1B4Pb/1P1NP1p1/2k2nQ1/p1p1PB1p/P1P3pP/6K1

#2

13 + 10

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...d6
      • 2.Qc8#
  • Tries
    • 1.Sxf4?
      • threat
        • 2.Se2#
        • 2.Sxg2#
        • 2.Sd3#
        • 2.Sxh3#
        • 2.Sd5#
        • 2.Sh5#
        • 2.Se6#
      • 1...Kb4
        • 2.Se2#
        • 2.Sxg2#
        • 2.Sd3#
        • 2.Sxh3#
        • 2.Sd5#
        • 2.Sh5#
        • 2.Se6#
      • 1...d5
        • 2.Sxd5#
      • 1...gxf4!
    • 1.Sc8?
      • threat
        • 2.Sd6#
      • 1...d6
        • 2.Sxd6#
      • 1...Kxb5!
    • 1.Bxg2?
      • 1...d6
        • 2.Qc8#
      • 1...hxg2!
    • 1.Ba5?
      • 1...d6
        • 2.Qc8#
      • 1...Kc5!
    • 1.Bd8?
      • 1...d6
        • 2.Qc8#
      • 1...Kc5!
    • 1.Qf5?
      • threat
        • 2.Qe4#
      • 1...Se6
        • 2.Qd3#
      • 1...Se2+!
    • 1.e4?
      • 1...Se2+
        • 2.Bxe2#
      • 1...Sxd5
        • 2.exd5#
      • 1...Sxg6
        • 2.Be2#
      • 1...Sh5
        • 2.Be2#
      • 1...Se6
        • 2.Be2#
      • 1...d6
        • 2.Qc8#
      • 1...Sd3!
  • Keys
    • 1.Be4!
      • 1...Se2+
        • 2.Qxe2#
      • 1...Sxd5
        • 2.Bd3#
      • 1...Sxg6
        • 2.Qe2#
      • 1...Sd3
        • 2.cxd3#
      • 1...Sh5
        • 2.Qe2#
      • 1...Se6
        • 2.Qe2#
      • 1...d6
        • 2.Qc8#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • P(i);OGATE::QAR(G)
  • Tries
    • Try
      • S(I);XS(f)
      • Threat
        • DUALS(7)
      • Vars
        • P(i);::QAR(G)+S(I),XP(i)
      • Refutation
        • P(g);P_SPINP(g),XS(I)
    • Try
      • S(M);
      • Threat
        • S(M)
      • Vars
        • P(i);::S(M),XP(i)
      • Refutation
        • K(e);N_SPINS(f),S_FLIGHT,XP(H)
    • Try
      • B(F);XP(a)
      • Vars
        • P(i);OGATE::QAR(G)
      • Refutation
        • P(d);XB(F)
    • Try
      • B(K);
      • Vars
        • P(i);OGATE::QAR(G)
      • Refutation
        • K(e);N_SPINS(f),P-FLIGHT
    • Try
      • B(K);
      • Vars
        • P(i);OGATE::QAR(G)
      • Refutation
        • K(e);N_SPINS(f),P-FLIGHT
    • Try
      • Q(G);N_PINS(f)
      • Threat
        • QAR2(G)
      • Vars
        • S(f);N_GUARD::QAB1(G)
      • Refutation
        • S(f);CHECK
    • Try
      • P(E);N_PINS(f)
      • Vars
        • S(f);CHECK,N_GUARD::B(F),XS(f)
        • S(f);OGATE,XS(I)::QAR(G)+P(E),XS(f)
        • S(f);N_GUARD,XP(L)::B(F)
        • S(f);N_GUARD::B(F)
        • P(i);OGATE::QAR(G)
      • Refutation
        • S(f);
  • Actual
    • B(F);N_PINS(f)
    • Vars
      • S(f);CHECK,N_GUARD::QAB(G),XS(f)
      • S(f);SBLOCK,XS(I)::QAR(G)+B(F),DCHECK
      • S(f);N_GUARD,XP(L)::QAB(G)
      • S(f);OGATE::P(C),XS(f)
      • S(f);N_GUARD::QAB(G)
      • P(i);OGATE::QAR(G)
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