MESON Chess Problem Database

Problem Display
PID: 254432 (qB3r2/1n5b/p7/p3R3/K1Nk4/Q2p2p1/B2Pn1N1/2b1R1r1 w - - 0 1)

Haywood, TH

Western Morning News, 1921

(First published on Sat Jun 25 1921)

qB3r2/1n5b/p7/p3R3/K1Nk4/Q2p2p1/B2Pn1N1/2b1R1r1

#2

9 + 12

15239 Valois Notebooks 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Sc3+
      • 2.Qxc3#
      • 2.dxc3#
    • 1...Sf4
      • 2.Qc3#
    • 1...Sc5+
      • 2.Qxc5#
    • 1...Sd6
      • 2.Qc5#
    • 1...Sd8
      • 2.Qc5#
  • Tries
    • 1.Sxa5?
      • threat
        • 2.Sc6#
        • 2.Qb4#
      • 1...Sc3+
        • 2.Qxc3#
        • 2.dxc3#
      • 1...Sc5+
        • 2.Qxc5#
      • 1...Qxb8
        • 2.Sc6#
      • 1...Rxb8
        • 2.Sc6#
      • 1...Bxd2
        • 2.Sc6#
      • 1...Bxa3
        • 2.Sc6#
      • 1...Sxa5
        • 2.Qc5#
      • 1...Sd6
        • 2.Qc5#
      • 1...Rf6
        • 2.Qb4#
      • 1...Be4
        • 2.Qb4#
      • 1...Bg8
        • 2.Sc6#
      • 1...Sd8
        • 2.Qb4#
        • 2.Qc5#
      • 1...Rc8!
    • 1.Ba7+?
      • 1...Sc5+
        • 2.Bxc5#
        • 2.Qxc5#
      • 1...Qxa7!
    • 1.Rd5+?
      • 1...Ke4
        • 2.Qxd3#
      • 1...Kxd5!
    • 1.Qb2+?
      • 1...Sc3+
        • 2.Qxc3#
        • 2.dxc3#
      • 1...Bxb2!
  • Keys
    • 1.Sd6!
      • threat
        • 2.Rd5#
      • 1...Sc3+
        • 2.Qxc3#
        • 2.dxc3#
      • 1...Sc5+
        • 2.Qxc5#
      • 1...Kxe5
        • 2.Qc3#
      • 1...Sxd6
        • 2.Qc5#
      • 1...Rf5
        • 2.Re4#
      • 1...Be4
        • 2.Rxe4#
      • 1...Bg8
        • 2.Re4#
      • 1...Sf4
        • 2.Qc3#
      • 1...Sd8
        • 2.Qc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • S(c);N_GUARD::QAB1(E)
    • S(i);CHECK,N_GUARD::QAB1(E),XS(i)
    • S(i);N_GUARD::QAB1(E)
  • Tries
    • Try
      • S(G);XP(g)
      • Threat
        • DUALS(2)
      • Vars
        • S(i);CHECK,N_GUARD::QAB1(E),XS(i)
        • Q(k);XB(I)::S(G)
        • R(l);XB(I)::S(G)
        • B(a);XP(C)::S(G)
        • B(a);XQ(E)::S(G)
        • S(i);N_GUARD,XS(G)::QAB1(E)
        • S(i);N_GUARD::QAB1(E)
        • R(l);::QAR2(E)
        • B(j);::QAR2(E)
        • B(j);::S(G)
      • Refutation
        • R(l);
    • Try
      • B(I);CHECK
      • Refutation
        • Q(k);XB(I)
    • Try
      • R(H);CHECK
      • Vars
        • K(f);P-FLIGHT,P_SPINS(c)::QAB1(E),XP(d)
      • Refutation
        • K(f);P-FLIGHT,XR(H)
    • Try
      • Q(E);CHECK
      • Refutation
        • B(a);XQ(E)
  • Actual
    • S(G);
    • Threat
      • R1(H)
    • Vars
      • S(i);CHECK,N_GUARD::QAB1(E),XS(i)
      • K(f);P_SPINS(c),S_FLIGHT,XR(H)::QAB(E)
      • S(i);N_GUARD,XS(G)::QAB1(E)
      • R(l);S_CUTB(j)::R1(H)
      • B(j);N_GUARD::R1(H),XB(j)
      • B(j);N_GUARD::R1(H)
      • S(c);N_GUARD::QAB1(E)
      • S(i);N_GUARD::QAB1(E)
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