MESON Chess Problem Database

Problem Display
PID: 251705 (3R4/2b1pR1B/5pn1/4PQ2/KpkP2n1/1N2r2p/1P1p3q/3N4 w - - 0 1)

Maleika, Gerhard

Die Schwalbe, 2021

3R4/2b1pR1B/5pn1/4PQ2/KpkP2n1/1N2r2p/1P1p3q/3N4

#2

10 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Qg1
      • 2.Sxd2#
    • 1...Qg3
      • 2.Sxd2#
    • 1...Qf4
      • 2.Sxd2#
    • 1...Qxe5
      • 2.Sxd2#
    • 1...Qh1
      • 2.Sxd2#
    • 1...Re1
      • 2.Qc2#
    • 1...Re2
      • 2.Qc2#
    • 1...Rd3
      • 2.Qe6#
    • 1...Rxe5
      • 2.Qc2#
    • 1...Ba5
      • 2.Sxa5#
    • 1...Bxe5
      • 2.Sa5#
    • 1...Bb8
      • 2.Sa5#
    • 1...Sf2
      • 2.Sxe3#
      • 2.Sxd2#
    • 1...S4xe5
      • 2.Sxe3#
    • 1...Sh6
      • 2.Sxe3#
    • 1...Sh4
      • 2.Qe6#
    • 1...S6xe5
      • 2.Qe6#
    • 1...Sh8
      • 2.Qe6#
    • 1...e6
      • 2.Rxc7#
  • Tries
    • 1.Sf2?
      • threat
        • 2.Sxd2#
        • 2.Qe6#
      • 1...Qxe5
        • 2.Sxd2#
      • 1...Rxb3
        • 2.Qe6#
      • 1...Rxe5
        • 2.Sxd2#
        • 2.Qc2#
        • 2.Qd3#
      • 1...Bxd8
        • 2.Qe6#
      • 1...Sxf2
        • 2.Sxd2#
      • 1...Bd6
        • 2.Qe6#
      • 1...d1Q
        • 2.Qe6#
      • 1...d1S
        • 2.Sd2#
        • 2.Qe6#
      • 1...d1B
        • 2.Qe6#
      • 1...d1R
        • 2.Qe6#
      • 1...Qh1
        • 2.Sxd2#
      • 1...Qg2
        • 2.Sxd2#
      • 1...Re2
        • 2.Qc2#
        • 2.Qd3#
        • 2.Qe6#
      • 1...Rd3
        • 2.Qxd3#
        • 2.Qe6#
      • 1...Sf4
        • 2.Sxd2#
      • 1...Sf8
        • 2.Sxd2#
      • 1...e6
        • 2.Sxd2#
        • 2.Rxc7#
        • 2.Qxe6#
      • 1...Qxf2!
    • 1.e6?
      • threat
        • 2.Qb5#
      • 1...Qe5
        • 2.Sxd2#
      • 1...Re5
        • 2.Qc2#
      • 1...Be5
        • 2.Sa5#
      • 1...S4e5
        • 2.Sxe3#
      • 1...S6e5!
  • Keys
    • 1.exf6!
      • threat
        • 2.Qb5#
      • 1...Qe5
        • 2.Sxd2#
      • 1...Re5
        • 2.Qc2#
      • 1...Be5
        • 2.Sa5#
      • 1...S4e5
        • 2.Sxe3#
      • 1...S6e5
        • 2.Qe6#
      • 1...e5
        • 2.Rxc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 13
  • Sets
    • Q(b);N_GUARD::S(C),XP(a)
    • Q(b);N_GUARD,XP(F)::S(C),XP(a)
    • R(c);N_GUARD::QAR2(G)
    • R(c);SBLOCK::QAB(G)
    • R(c);N_GUARD,XP(F)::QAR2(G)
    • B(j);N_GUARD::S(C),XB(j)
    • B(j);N_GUARD,XP(F)::S(C)
    • B(j);N_GUARD::S(C)
    • S(g);N_GUARD,XP(F)::S(A),XR(c)
    • S(g);N_GUARD::S(A),XR(c)
    • S(i);::QAB(G)
    • S(i);XP(F)::QAB(G)
    • P(k);OGATE::R(H),XB(j)
  • Tries
    • Try
      • S(A);
      • Threat
        • DUALS(2)
      • Vars
        • Q(b);XP(F)::S(C),XP(a)
        • R(c);XS(C)::QAB(G)
        • B(j);XR(J)::QAB(G)
        • S(g);XS(A)::S(C),XP(a)
        • B(j);::QAB(G)
        • P(a);P_PINS(C)::QAB(G)
        • P(a);::QAB(G)
        • Q(b);::S(C),XP(a)
        • S(i);::S(C),XP(a)
      • Refutation
        • Q(b);XS(A)
    • Try
      • P(F);
      • Threat
        • QAB1(G)
      • Vars
        • Q(b);N_GUARD::S(C),XP(a)
        • R(c);N_GUARD::QAR2(G)
        • B(j);N_GUARD::S(C)
        • S(g);N_GUARD::S(A),XR(c)
      • Refutation
        • S(i);
  • Actual
    • P(F);XP(h)
    • Threat
      • QAB1(G)
    • Vars
      • Q(b);N_GUARD::S(C),XP(a)
      • R(c);N_GUARD::QAR2(G)
      • B(j);N_GUARD::S(C)
      • S(g);N_GUARD::S(A),XR(c)
      • S(i);S_CUTR(c)::QAB(G)
      • P(k);OGATE::R(H),XB(j)
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