MESON Chess Problem Database

Problem Display
PID: 151877 (1bb2nK1/1p3pN1/1R1P4/2pk1p1Q/1P1pq3/1P1Rp1B1/8/7B w - - 0 1)

Windle, REL

3rd HM., Good Companions (February), 1915

1bb2nK1/1p3pN1/1R1P4/2pk1p1Q/1P1pq3/1P1Rp1B1/8/7B

#2

10 + 11

15 British Chess Magazine 1915

SOLUTION

  • SOUND
  • Sets
    • 1...Qxh1
      • 2.Qxh1#
    • 1...Qg2
      • 2.Bxg2#
    • 1...Qf3
      • 2.Bxf3#
      • 2.Qxf3#
    • 1...Bxd6
      • 2.Rxd6#
    • 1...Se6
      • 2.Qxf5#
    • 1...Sd7
      • 2.Qxf7#
  • Tries
    • 1.Rxe3?
      • threat
        • 2.Bxe4#
      • 1...Qxh1
        • 2.Re5#
        • 2.Qxh1#
      • 1...dxe3
        • 2.Qd1#
      • 1...d3
        • 2.Rxd3#
      • 1...Qg2
        • 2.Bxg2#
        • 2.Re5#
      • 1...Qf3
        • 2.Bxf3#
        • 2.Re5#
        • 2.Qxf3#
      • 1...cxb4!
    • 1.Qxf7+?
      • 1...Se6
        • 2.Qxf5#
      • 1...Be6!
  • Keys
    • 1.Rc3!
      • threat
        • 2.Rxc5#
      • 1...Qxh1
        • 2.Qxh1#
      • 1...Bxd6
        • 2.Rxd6#
      • 1...dxc3
        • 2.Qd1#
      • 1...cxb4
        • 2.Rb5#
      • 1...Qg2
        • 2.Bxg2#
      • 1...Qf3
        • 2.Bxf3#
        • 2.Qxf3#
      • 1...d3
        • 2.Rxd3#
      • 1...Se6
        • 2.Qxf5#
      • 1...Sd7
        • 2.Qxf7#
      • 1...c4
        • 2.bxc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • Q(c);N_SPINQ(c),OGATE,XB(A)::QAB(F),XQ(c)
    • Q(c);OGATEB::B(A),XQ(c)
    • B(i);OGATE,XP(H)::R1(G),XB(i)
    • S(k);S_CUTB(j)::QAR2(F),XP(f)
    • S(k);N_GUARD,S_CUTB(j)::QAB(F),XP(h)
  • Tries
    • Try
      • R(C);N_PINP(b),P_PINP(f),XP(a)
      • Threat
        • B(A),XQ(c)
      • Vars
        • P(b);OGATEB,XR(C)::QAR(F)
        • P(b);OGATEB::R(C),XP(b)
      • Refutation
        • P(d);XP(E)
    • Try
      • Q(F);CHECK,XP(h)
      • Vars
        • S(k);P_SPINS(k),S_CUTB(j)::QAR2(F),XP(f)
      • Refutation
        • B(j);P_PINQ(F),P_SPINB(j)
  • Actual
    • R(C);N_PINP(b),P_PINP(f)
    • Threat
      • R1(C),XP(d)
    • Vars
      • Q(c);N_SPINQ(c),OGATE,XB(A)::QAB(F),XQ(c)
      • B(i);OGATE,XP(H)::R1(G),XB(i)
      • P(b);OGATEB,XR(C)::QAR(F)
      • P(d);OGATEB,XP(E)::R(G)
      • Q(c);OGATEB::B(A),XQ(c)
      • P(b);OGATEB::R(C),XP(b)
      • S(k);S_CUTB(j)::QAR2(F),XP(f)
      • S(k);N_GUARD,S_CUTB(j)::QAB(F),XP(h)
      • P(d);OGATE::P(B),XP(d)
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