MESON Chess Problem Database

Problem Display
PID: 103271 (8/b2p2n1/p1pB2Qp/Rbnk4/p1N1R3/8/B3K3/8 w - - 0 1)

Madsen, Arthur Valdemar

Bristol Times and Mirror, 1925

8/b2p2n1/p1pB2Qp/Rbnk4/p1N1R3/8/B3K3/8

#2

7 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bxc4+
      • 2.Bxc4#
    • 1...Sd3
      • 2.Sb2#
      • 2.Sd2#
      • 2.Sa3#
      • 2.Se3#
      • 2.Se5#
      • 2.Sb6#
    • 1...Sf5
      • 2.Qxf5#
    • 1...Sh5
      • 2.Qf5#
    • 1...Se6
      • 2.Qf5#
    • 1...Se8
      • 2.Qf5#
  • Tries
    • 1.Rxb5?
      • threat
        • 2.Sb2#
        • 2.Sd2#
        • 2.Sa3#
        • 2.Se3#
        • 2.Sa5#
        • 2.Se5#
        • 2.Sb6#
      • 1...axb5
        • 2.Se3#
        • 2.Sb6#
      • 1...Sf5
        • 2.Sd2#
        • 2.Qxf5#
      • 1...Bb6
        • 2.Sb2#
        • 2.Sd2#
        • 2.Sa3#
        • 2.Se3#
        • 2.Sa5#
        • 2.Se5#
        • 2.Sxb6#
      • 1...Se6
        • 2.Qf5#
      • 1...a3
        • 2.Sb2#
        • 2.Sd2#
        • 2.Sxa3#
        • 2.Se3#
        • 2.Sa5#
        • 2.Se5#
        • 2.Sb6#
      • 1...a5
        • 2.Sb2#
        • 2.Sd2#
        • 2.Sa3#
        • 2.Se3#
        • 2.Sxa5#
        • 2.Se5#
        • 2.Sb6#
      • 1...cxb5!
    • 1.Qh5+?
      • 1...Kxe4
        • 2.Qe5#
      • 1...Sf5
        • 2.Qxf5#
      • 1...Sxh5!
    • 1.Qg5+?
      • 1...Kxe4
        • 2.Qe5#
      • 1...Sf5
        • 2.Qxf5#
      • 1...hxg5!
    • 1.Qf6?
      • threat
        • 2.Rd4#
        • 2.Qd4#
        • 2.Qe5#
      • 1...Kxe4
        • 2.Qe5#
      • 1...Sxe4
        • 2.Qe5#
      • 1...Sb3
        • 2.Qe5#
      • 1...Sd3
        • 2.Sd2#
      • 1...Sce6
        • 2.Qe5#
      • 1...Sb7
        • 2.Qe5#
      • 1...Sf5
        • 2.Qe5#
        • 2.Qxf5#
      • 1...Sge6
        • 2.Qe5#
        • 2.Qf5#
      • 1...Bxc4+!
  • Keys
    • 1.Qg3!
      • threat
        • 2.Qe5#
      • 1...Bxc4+
        • 2.Qd3#
      • 1...Kxe4
        • 2.Qe5#
      • 1...Sd3
        • 2.Sd2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • B(b);CHECK,OGATE,P_SPINB(b),P_SPINS(c),XS(C)::B(A),XB(b)
    • S(j);N_GUARD::QAR2(G),XS(j)
    • S(j);N_GUARD::QAR2(G)
  • Tries
    • Try
      • R(E);N_SPINS(C),P_PINS(c),XB(b)
      • Threat
        • DUALS(7)
      • Vars
        • S(j);N_GUARD::QAR2(G)
      • Refutation
        • P(f);N_SPINS(c),XR(E)
    • Try
      • Q(G);CHECK
      • Vars
        • K(d);S_FLIGHT,XR(D)::QAR1(G)
        • S(j);N_GUARD,P_SPINS(j)::QAR2(G),XS(j)
      • Refutation
        • S(j);XQ(G)
    • Try
      • Q(G);CHECK
      • Vars
        • K(d);S_FLIGHT,XR(D)::QAR1(G)
        • S(j);N_GUARD,P_SPINS(j)::QAR2(G),XS(j)
      • Refutation
        • P(g);XQ(G)
    • Try
      • Q(G);
      • Threat
        • DUALS(3)
      • Vars
        • K(d);S_FLIGHT,XR(D)::QAR1(G)
        • S(c);P_SPINB(b),XR(D)::QAR1(G)
        • S(c);P_SPINB(b)::QAR1(G)
        • S(c);N_PINS(C),P_SPINB(b)::B(A)+S(C)
      • Refutation
        • B(b);CHECK,P_SPINB(b),P_SPINS(c),XS(C)
  • Actual
    • Q(G);
    • Threat
      • QAR1(G)
    • Vars
      • B(b);CHECK,P_SPINB(b),P_SPINS(c),XS(C)::QAR2(G)
      • K(d);S_FLIGHT,XR(D)::QAR1(G)
      • S(c);N_PINS(C),P_SPINB(b)::B(A)+S(C)
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