MESON Chess Problem Database

Problem Display
PID: 96883 (1qB5/6p1/bpr2R1b/pr2k2p/1Nnp1RpB/pQ1P2P1/1n6/2K1N3 w - - 0 1)

Wenman, Francis Percival (aka Percy Wenman)

200 Assorted Problems (Wenman), 1945

1qB5/6p1/bpr2R1b/pr2k2p/1Nnp1RpB/pQ1P2P1/1n6/2K1N3

#2

10 + 15

6490 yacpdb 2009
5454 Near Snap 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Qd6
      • 2.Rf5#
    • 1...Rd5
      • 2.Sxc6#
    • 1...Rc5
      • 2.Re6#
    • 1...Rd6
      • 2.Rf5#
    • 1...Re6
      • 2.Rxe6#
    • 1...Rc7
      • 2.Re6#
    • 1...Bxf4+
      • 2.gxf4#
    • 1...Sxd3+
      • 2.Sexd3#
    • 1...Sd2+
      • 2.Sxc6#
    • 1...Se3+
      • 2.Sxc6#
    • 1...Sd6+
      • 2.Sxc6#
    • 1...g5
      • 2.R4f5#
  • Keys
    • 1.Qc3!
      • threat
        • 2.Qxd4#
      • 1...Bxf4+
        • 2.gxf4#
      • 1...Sxd3+
        • 2.Sexd3#
      • 1...dxc3
        • 2.d4#
      • 1...Qd6
        • 2.Rf5#
      • 1...Rd5
        • 2.Sxc6#
      • 1...Rd6
        • 2.Rf5#
      • 1...Sd2
        • 2.R4f5#
      • 1...Se3
        • 2.Re4#
      • 1...Sd6
        • 2.Re6#

Anticipated by 148270(1933)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 1
    • REMOVED MATES = 4
  • Sets
    • Q(o);SBLOCK::R1(I)
    • R(g);SBLOCK::S(F),XR(l)
    • R(l);N_GUARD::R1(I)
    • R(l);SBLOCK::R1(I)
    • R(l);N_GUARD::R1(I),XR(l)
    • B(m);CHECK,OGATE,XR(G)::P(E),XB(m)
    • S(a);CHECK,XP(D)::S(B),XS(a)
    • S(c);CHECK,N_PINR(G)::S(F),XR(l)
    • S(c);CHECK::S(F),XR(l)
    • P(n);N_PINR(G)::R1(G)
  • Actual
    • Q(C);P_PINP(d)
    • Threat
      • QAB1(C),XP(d)
    • Vars
      • B(m);CHECK,OGATE,XR(G)::P(E),XB(m)
      • S(a);CHECK,XP(D)::S(B),XS(a)
      • P(d);N_SPINP(d),OGATE,XQ(C)::P(D)
      • Q(o);SBLOCK::R1(I)
      • R(g);SBLOCK::S(F),XR(l)
      • R(l);SBLOCK::R1(I)
      • S(c);N_PINR(G),P_PINQ(C)::R1(G)
      • S(c);P_PINQ(C),S_CUTR(l)::R1(I)
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