MESON Chess Problem Database

Problem Display
PID: 53854 (Bbr1R3/3bN3/2r2P2/pNP1p3/K3k1P1/1R2B3/2n5/5Qnq w - - 0 1)

Guttman, Newman

Christian Science Monitor, 1948

Bbr1R3/3bN3/2r2P2/pNP1p3/K3k1P1/1R2B3/2n5/5Qnq

#2

11 + 10

785 Het Belgisch Schaakbord (L'Echiquier Belge) 1951

SOLUTION

  • SOUND
  • Sets
    • 1...Qf3
      • 2.Qd3#
    • 1...Rc7
      • 2.Sd6#
    • 1...Bf5
      • 2.Qxf5#
    • 1...Bxe8
      • 2.Qf5#
    • 1...Bd6
      • 2.Sxd6#
    • 1...Ba7
      • 2.Sd6#
    • 1...Se2
      • 2.Qxh1#
    • 1...Sf3
      • 2.Qd3#
    • 1...Sh3
      • 2.Qxh1#
  • Tries
    • 1.Sf5?
      • threat
        • 2.Sc3#
      • 1...Kd5
        • 2.Sc3#
      • 1...Se2
        • 2.Qxh1#
      • 1...Bxf5!
    • 1.Bxg1?
      • threat
        • 2.Sc3#
      • 1...Qxg1
        • 2.Qf3#
      • 1...Qf3
        • 2.Qxf3#
      • 1...Se3
        • 2.Rxe3#
      • 1...Qh3!
    • 1.Bxc6+?
      • 1...Bxc6
        • 2.Qf5#
      • 1...Rxc6!
    • 1.Qe2?
      • threat
        • 2.Sc3#
      • 1...Sxe3
        • 2.Qxe3#
      • 1...Sxe2!
    • 1.Qg2+?
      • 1...Sf3
        • 2.Qxc2#
      • 1...Qxg2!
    • 1.Qc4+?
      • 1...Sd4
        • 2.Qd5#
      • 1...Kf3!
  • Keys
    • 1.Sd5!
      • threat
        • 2.Sbc3#
      • 1...Kxd5
        • 2.Sc3#
      • 1...Rxc5
        • 2.Qf4#
      • 1...Rxf6
        • 2.Sxf6#
      • 1...Sxe3
        • 2.Sdc3#
      • 1...Ra6
        • 2.Qf4#
      • 1...Rb6
        • 2.Qf4#
      • 1...Rd6
        • 2.Qf4#
      • 1...Re6
        • 2.Qf5#
      • 1...R6c7
        • 2.Qf4#
      • 1...Se2
        • 2.Qxh1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 8
  • Sets
    • Q(b);SBLOCK::QAB1(A)
    • R(j);S_CUTB(i)::S(F)
    • B(h);N_GUARD::QAB1(A),XB(h)
    • B(h);N_GUARD,XR(K)::QAB1(A)
    • B(i);N_GUARD::S(F),XB(i)
    • B(i);N_GUARD::S(F)
    • S(a);OGATE::QAB(A),XQ(b)
    • S(a);SBLOCK::QAB1(A)
  • Tries
    • Try
      • S(I);P_PINP(f)
      • Threat
        • S(F)
      • Vars
        • K(d);N_SPINP(f),S_FLIGHT::S(F)
        • S(a);OGATE::QAB(A),XQ(b)
      • Refutation
        • B(h);XS(I)
    • Try
      • B(C);XS(a)
      • Threat
        • S(F)
      • Vars
        • Q(b);N_GUARD,XB(C)::QAB1(A)
        • Q(b);N_GUARD::QAB1(A),XQ(b)
        • S(c);N_GUARD::R1(B),XS(c)
      • Refutation
        • Q(b);
    • Try
      • B(J);CHECK,XR(g)
      • Vars
        • B(h);P_PINS(F),XB(J)::QAB1(A)
      • Refutation
        • R(j);XB(J)
    • Try
      • Q(A);
      • Threat
        • S(F)
      • Vars
        • S(c);OGATE,P_SPINS(c),XB(C)::QAR1(A),XS(c)
      • Refutation
        • S(a);XQ(A)
    • Try
      • Q(A);CHECK
      • Vars
        • S(a);P_SPINS(a),SBLOCK::QAB(A),XS(c)
      • Refutation
        • Q(b);XQ(A)
    • Try
      • Q(A);CHECK
      • Vars
        • S(c);P_SPINS(c)::QAB1(A)
      • Refutation
        • K(d);S_FLIGHT
  • Actual
    • S(I);N_PINR(g),P_PINP(f)
    • Threat
      • S(F)
    • Vars
      • K(d);N_SPINP(f),P_SPINR(g),S_FLIGHT,XS(I)::S(F)
      • R(g);P_PINS(F),XP(G)::QAR1(A)
      • R(g);P_PINS(F),XP(H)::B(J)+S(I),DCHECK,XR(g)
      • S(c);SBLOCK,XB(C)::S(I)
      • R(g);P_PINS(F)::QAR1(A)
      • R(g);N_SPINP(f),P_PINS(F),S_CUTB(h)::QAB1(A)
      • S(a);OGATE::QAB(A),XQ(b)
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