MESON Chess Problem Database

Problem Display
PID: 254678 (1q3R2/3N1b2/2Q5/2Br1N1P/pP2kb1R/2P5/1PK3P1/1B5n w - - 0 1)

Handloser, Ralf Chris

idee & form, 2017

1q3R2/3N1b2/2Q5/2Br1N1P/pP2kb1R/2P5/1PK3P1/1B5n

#2

13 + 7

15601 Albrecht-Leiss-Degener Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kxf5
      • 2.Qg6#
    • 1...Qd6
      • 2.Sxd6#
    • 1...Qa7
      • 2.Sd6#
    • 1...Qxb4
      • 2.Sd6#
    • 1...Qb5
      • 2.Sd6#
    • 1...Qb6
      • 2.Sd6#
    • 1...Qb7
      • 2.Sd6#
    • 1...Qa8
      • 2.Sd6#
    • 1...Qc8
      • 2.Sd6#
    • 1...Qd8
      • 2.Sd6#
    • 1...Qe8
      • 2.Sd6#
    • 1...Sf2
      • 2.Sg3#
    • 1...Sg3
      • 2.Sxg3#
    • 1...a3
      • 2.Kb3#
  • Tries
    • 1.Be3?
      • threat
        • 2.Kc1#
      • 1...Kxf5
        • 2.Qg6#
      • 1...Qb5
        • 2.Rxf4#
      • 1...Sf2!
    • 1.Qxd5+?
      • 1...Bxd5
        • 2.Kd1#
      • 1...Kxd5!
    • 1.Qe6+?
      • 1...Qe5
        • 2.Sf6#
      • 1...Re5
        • 2.Kd1#
        • 2.Sf6#
      • 1...Bxe6!
    • 1.b3?
      • threat
        • 2.Kb2#
      • 1...Kxf5
        • 2.Qg6#
      • 1...Sf2
        • 2.Sg3#
      • 1...Qb5
        • 2.Sd6#
      • 1...a3!
    • 1.c4?
      • threat
        • 2.Kc3#
      • 1...Kxf5
        • 2.Qg6#
      • 1...Qxb4
        • 2.Sd6#
      • 1...Sf2
        • 2.Sg3#
      • 1...Qe5!
  • Keys
    • 1.Bd4!
      • threat
        • 2.Kd1#
      • 1...Kxf5
        • 2.Qg6#
      • 1...Bxh5
        • 2.Sc5#
      • 1...Sf2
        • 2.Sg3#
      • 1...Qb5
        • 2.Sd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 11
  • Sets
    • K(c);N_SPINB(d),N_SPINR(e),OGATEB,P_SPINB(f),S_FLIGHT,XS(I)::QAB1(K)
    • Q(g);N_GUARD::S(I),XQ(g)
    • Q(g);N_GUARD::S(I)
    • Q(g);N_GUARD,XP(F)::S(I)
    • S(a);N_GUARD::S(I)
    • S(a);N_GUARD::S(I),XS(a)
    • P(b);::B(A)+K(C)
  • Tries
    • Try
      • B(H);
      • Threat
        • B(A)+K(C)
      • Vars
        • K(c);N_SPINB(d),N_SPINR(e),OGATEB,P_SPINB(f),S_FLIGHT,XS(I)::QAB1(K)
        • Q(g);N_GUARD::R1(G),XB(d)
      • Refutation
        • S(a);
    • Try
      • Q(K);CHECK,XR(e)
      • Vars
        • B(f);SBLOCK,XQ(K)::B(A)+K(C)
      • Refutation
        • K(c);N_SPINB(d),S_FLIGHT,XQ(K)
    • Try
      • Q(K);CHECK,N_PINR(e)
      • Vars
        • Q(g);P_SPINQ(g)::S(L)
      • Refutation
        • B(f);XQ(K)
    • Try
      • P(B);
      • Threat
        • B(A)+K(C)
      • Vars
        • K(c);N_SPINB(d),N_SPINR(e),OGATEB,P_SPINB(f),S_FLIGHT,XS(I)::QAB1(K)
        • S(a);N_GUARD::S(I)
        • Q(g);N_GUARD::S(I)
      • Refutation
        • P(b);
    • Try
      • P(E);
      • Threat
        • B(A)+K(C)
      • Vars
        • K(c);N_SPINB(d),N_SPINR(e),OGATEB,P_SPINB(f),S_FLIGHT,XS(I)::QAB1(K)
        • Q(g);N_GUARD,XP(F)::S(I)
        • S(a);N_GUARD::S(I)
      • Refutation
        • Q(g);
  • Actual
    • B(H);
    • Threat
      • B(A)+K(C)
    • Vars
      • K(c);N_SPINB(d),N_SPINR(e),OGATEB,P_SPINB(f),S_FLIGHT,XS(I)::QAB1(K)
      • B(f);XP(J)::S(L)
      • S(a);N_GUARD::S(I)
      • Q(g);N_GUARD::S(I)
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