MESON Chess Problem Database

Problem Display
PID: 17577 (8/4NQ2/4p1N1/4p1B1/3pk1p1/K3b2r/1P4Rp/7B w - - 0 1)

Mansfield, Comins

2nd Prize, Sunday Chronicle, 1947

(First published on Sun Nov 30 1947)

8/4NQ2/4p1N1/4p1B1/3pk1p1/K3b2r/1P4Rp/7B

#2

8 + 8

3550 Complete Mansfield/II 1997
15239 Valois Notebooks 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rh4
      • 2.Rd2#
    • 1...Rh5
      • 2.Rd2#
    • 1...Rh6
      • 2.Rd2#
    • 1...Rh7
      • 2.Rd2#
    • 1...Rh8
      • 2.Rd2#
    • 1...Bc1+
      • 2.Rg3#
    • 1...Bg1+
      • 2.Rg3#
    • 1...Bd2+
      • 2.Rg3#
    • 1...Bf2+
      • 2.Rg3#
    • 1...Bf4+
      • 2.Rg3#
    • 1...Bxg5+
      • 2.Rg3#
    • 1...d3
      • 2.Rxg4#
  • Tries
    • 1.Rf2+?
      • 1...Kd3
        • 2.Sxe5#
      • 1...Rf3!
    • 1.Rxh2+?
      • 1...Kd3
        • 2.Sxe5#
        • 2.Qf1#
      • 1...Rf3!
    • 1.Qf1?
      • threat
        • 2.Rg3#
        • 2.Rxg4#
      • 1...Bc1+
        • 2.Rg3#
      • 1...Bg1+
        • 2.Rg3#
      • 1...Bd2+
        • 2.Rg3#
      • 1...Bf2+
        • 2.Rg3#
      • 1...Bf4+
        • 2.Rg3#
      • 1...Bxg5+
        • 2.Rg3#
      • 1...d3
        • 2.Rxg4#
      • 1...Rg3
        • 2.Rxg3#
      • 1...g3
        • 2.Rxg3#
      • 1...Rf3!
    • 1.Qf4+?
      • 1...Kd3
        • 2.Sxe5#
      • 1...Bxf4+
        • 2.Rg3#
      • 1...exf4!
  • Keys
    • 1.Qh7!
      • threat
        • 2.Sh4#
      • 1...Bc1+
        • 2.Rg3#
      • 1...Bg1+
        • 2.Rg3#
      • 1...Bd2+
        • 2.Rg3#
      • 1...Bf2+
        • 2.Rg3#
      • 1...Bf4+
        • 2.Rg3#
      • 1...Bxg5+
        • 2.Rg3#
      • 1...Kd3
        • 2.Sxe5#
      • 1...Kf3
        • 2.Sxe5#
      • 1...Rxh7
        • 2.Rd2#
      • 1...Rf3
        • 2.Sf4#
      • 1...Rh4
        • 2.Sxh4#
        • 2.Rd2#
      • 1...Rh5
        • 2.Rd2#
      • 1...Rh6
        • 2.Rd2#
      • 1...d3
        • 2.Rxg4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • R(c);N_GUARD::B(A)+R(C)
    • B(b);CHECK,P_PINP(B)::B(A)+R(C)
    • B(b);CHECK::B(A)+R(C)
    • B(b);CHECK,XB(E)::B(A)+R(C)
    • P(d);SBLOCK::B(A)+R(C),DCHECK,XP(f)
  • Tries
    • Try
      • R(C);CHECK
      • Vars
        • K(e);S_FLIGHT::S(F),XP(g)
      • Refutation
        • R(c);P_SPINR(c)
    • Try
      • R(C);CHECK,XP(a)
      • Refutation
        • R(c);P_SPINR(c)
    • Try
      • Q(H);
      • Threat
        • DUALS(2)
      • Vars
        • B(b);CHECK,P_PINP(B)::B(A)+R(C)
        • B(b);CHECK::B(A)+R(C)
        • B(b);CHECK,XB(E)::B(A)+R(C)
        • P(d);::B(A)+R(C),DCHECK,XP(f)
        • R(c);::B(A)+R(C),XR(c)
        • P(f);::B(A)+R(C),XP(f)
      • Refutation
        • R(c);
    • Try
      • Q(H);CHECK
      • Vars
        • K(e);S_FLIGHT::S(F),XP(g)
        • B(b);CHECK,XQ(H)::B(A)+R(C)
      • Refutation
        • P(g);XQ(H)
  • Actual
    • Q(H);
    • Threat
      • QAB(H)+S(F)
    • Vars
      • B(b);CHECK,P_PINP(B)::B(A)+R(C)
      • B(b);CHECK::B(A)+R(C)
      • B(b);CHECK,XB(E)::B(A)+R(C)
      • K(e);S_FLIGHT::QAB(H)+S(F),DCHECK,XP(g)
      • K(e);S_FLIGHT::S(F),XP(g)
      • R(c);N_GUARD,XQ(H)::B(A)+R(C)
      • R(c);N_GUARD,SBLOCK::QAB(H)+S(F)
      • R(c);N_GUARD::B(A)+R(C)
      • P(d);SBLOCK::B(A)+R(C),DCHECK,XP(f)
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