MESON Chess Problem Database

Problem Display
PID: 65043 (4BR1n/1p5r/1P2kP2/KN5N/ppp1PB2/8/6R1/2rqnQ2 w - - 0 1)

Maleika, Gerhard

Die Schwalbe, 1986

4BR1n/1p5r/1P2kP2/KN5N/ppp1PB2/8/6R1/2rqnQ2

#2

11 + 10

5159 FIDE Album (1986-1988) (Annexe) 1996

SOLUTION

  • SOUND
  • Sets
    • 1...Qc2
      • 2.Sd4#
    • 1...Qe2
      • 2.Sd4#
    • 1...Qb3
      • 2.Sd4#
    • 1...Qf3
      • 2.Sd4#
    • 1...Qg4
      • 2.Sd4#
    • 1...Qd4
      • 2.Sxd4#
    • 1...Rh6
      • 2.Sc7#
      • 2.Sg7#
    • 1...Rc7
      • 2.Sxc7#
    • 1...Rg7
      • 2.Sxg7#
    • 1...Sd3
      • 2.Sd4#
    • 1...Sf7
      • 2.Sc7#
  • Tries
    • 1.Rg5?
      • threat
        • 2.Re5#
      • 1...Qxh5
        • 2.Sd4#
      • 1...Rxh5
        • 2.Sc7#
      • 1...Qd4
        • 2.Sxd4#
        • 2.Qh3#
      • 1...Qd5
        • 2.exd5#
      • 1...Qd6
        • 2.Qh3#
      • 1...Sd3
        • 2.Sd4#
      • 1...Sf3
        • 2.Qh3#
      • 1...Sf7
        • 2.Sc7#
      • 1...Sg6!
    • 1.Rg7?
      • threat
        • 2.Sc7#
      • 1...Qxh5
        • 2.Bd7#
      • 1...Rxh5
        • 2.Re7#
      • 1...Rxg7
        • 2.Sxg7#
      • 1...Qd6
        • 2.Qh3#
      • 1...Qd7
        • 2.Bxd7#
        • 2.Qh3#
      • 1...Qd8
        • 2.Qh3#
      • 1...Qd5!
    • 1.Qxc4+?
      • 1...Qd5
        • 2.Qxd5#
      • 1...Rxc4!
  • Keys
    • 1.Rd2!
      • threat
        • 2.Sd4#
      • 1...Qxh5
        • 2.Rd6#
      • 1...Qxd2
        • 2.Qh3#
      • 1...Rxh5
        • 2.Bd7#
      • 1...Rd7
        • 2.Bxd7#
      • 1...Sc2
        • 2.Qxc4#
      • 1...Sf3
        • 2.Qh3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 10
  • Sets
    • Q(b);N_GUARD::S(F)
    • Q(b);N_GUARD::S(F),XQ(b)
    • R(i);N_GUARD::S(F),XR(i)
    • R(i);N_GUARD::S(G),XR(i)
    • S(c);S_CUTQ(b)::S(F)
    • S(j);S_CUTR(i)::S(F)
  • Tries
    • Try
      • R(B);
      • Threat
        • R1(B)
      • Vars
        • Q(b);N_GUARD,XS(G)::S(F)
        • R(i);N_GUARD,XS(G)::S(F)
        • Q(b);OGATE,P_PINS(F)::P(C),XQ(b)
        • Q(b);N_GUARD::QAB(A)
        • S(c);S_CUTQ(b)::S(F)
        • S(c);S_CUTQ(b)::QAB(A)
        • S(j);S_CUTR(i)::S(F)
      • Refutation
        • S(j);
    • Try
      • R(B);
      • Threat
        • S(F)
      • Vars
        • Q(b);N_GUARD,P_PINS(F),XS(G)::B(J)
        • R(i);N_GUARD,P_PINS(F),XS(G)::R1(B)
        • R(i);XR(B)::S(G),XR(i)
        • Q(b);N_GUARD::QAB(A)
        • Q(b);N_GUARD,P_PINP(H)::QAB(A)
      • Refutation
        • Q(b);P_PINS(F)
    • Try
      • Q(A);CHECK,XP(f)
      • Vars
        • Q(b);N_GUARD,P_PINS(F),P_SPINQ(b)::QAB1(A),XQ(b)
      • Refutation
        • R(a);XQ(A)
  • Actual
    • R(B);
    • Threat
      • S(F)
    • Vars
      • Q(b);N_GUARD,P_PINS(F),XS(G)::R1(B)
      • Q(b);N_GUARD,XR(B)::QAB(A)
      • R(i);N_GUARD,P_PINS(F),XS(G)::B(J)
      • R(i);N_GUARD::B(J),XR(i)
      • S(c);S_CUTR(a)::QAB(A),XP(f)
      • S(c);S_CUTQ(b)::QAB(A)
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