MESON Chess Problem Database

Problem Display
PID: 28302 (4br1b/2PpBkPR/3p3P/3P1N2/8/8/8/6K1 w - - 0 1)

Pauly, Wolfgang

Deutsche Schachzeitung, 1901

4br1b/2PpBkPR/3p3P/3P1N2/8/8/8/6K1

#2

8 + 6

1829 The Theory of Pawn Promotion 1912
3242 BCPS Rapid Solving (Cheltenham) 2001
4198 Wolfgang Pauly Challenge of a Legacy 2001

SOLUTION

  • SOUND
  • Sets
    • 1...Kg8
      • 2.gxh8Q#
      • 2.gxh8R#
    • 1...Bxg7
      • 2.Rxg7#
  • Tries
    • 1.Kf1?
      • 1...Kg8
        • 2.gxh8Q#
        • 2.gxh8R#
      • 1...Bxg7
        • 2.Rxg7#
      • 1...Rg8
        • 2.gxh8S#
      • 1...Kg6!
    • 1.Kh1?
      • 1...Kg8
        • 2.gxh8Q#
        • 2.gxh8R#
      • 1...Bxg7
        • 2.Rxg7#
      • 1...Rg8
        • 2.gxh8S#
      • 1...Kg6!
    • 1.Kf2?
      • 1...Kg8
        • 2.gxh8Q#
        • 2.gxh8R#
      • 1...Bxg7
        • 2.Rxg7#
      • 1...Rg8
        • 2.gxh8S#
      • 1...Kg6!
    • 1.Kh2?
      • 1...Kg8
        • 2.gxh8Q#
        • 2.gxh8R#
      • 1...Bxg7
        • 2.Rxg7#
      • 1...Rg8
        • 2.gxh8S#
      • 1...Kg6!
    • 1.Sh4?
      • threat
        • 2.gxf8Q#
        • 2.gxf8R#
        • 2.gxh8Q#
        • 2.gxh8R#
      • 1...Kxe7
        • 2.g8S#
      • 1...Kg8
        • 2.gxh8Q#
        • 2.gxh8R#
      • 1...Bxg7
        • 2.Rxg7#
      • 1...Rg8!
    • 1.gxf8S+?
      • 1...Bg7
        • 2.Rxg7#
      • 1...Kg8!
    • 1.g8R+?
      • 1...Bg7
        • 2.Rhxg7#
        • 2.Rgxg7#
      • 1...Kxg8!
  • Keys
    • 1.Sg3!
      • 1...Kg6
        • 2.gxf8S#
      • 1...Kxe7
        • 2.g8S#
      • 1...Kg8
        • 2.gxh8Q#
        • 2.gxh8R#
      • 1...Bxg7
        • 2.Rxg7#
      • 1...Rg8
        • 2.gxh8S#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(c);S_FLIGHT::PXB(f)=Q
    • B(f);OGATE,P_SPINB(f),XP(G)::R1(H),XB(f)
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Vars
        • K(c);P_PINS(C),S_FLIGHT::PXB(f)=Q
        • B(f);OGATE,P_SPINB(f),XP(G)::R1(H),XB(f)
        • R(e);SBLOCK::PXB(f)=S
      • Refutation
        • K(c);P_PINS(C),S_FLIGHT
    • Try
      • K(A);P-FLIGHT
      • Vars
        • K(c);S_FLIGHT::PXB(f)=Q
        • B(f);OGATE,P_SPINB(f),XP(G)::R1(H),XB(f)
        • R(e);SBLOCK::PXB(f)=S
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • K(A);S_FLIGHT
      • Vars
        • K(c);P_PINS(C),S_FLIGHT::PXB(f)=Q
        • B(f);OGATE,P_SPINB(f),XP(G)::R1(H),XB(f)
        • R(e);SBLOCK::PXB(f)=S
      • Refutation
        • K(c);P_PINS(C),S_FLIGHT
    • Try
      • K(A);S_FLIGHT
      • Vars
        • K(c);S_FLIGHT::PXB(f)=Q
        • B(f);OGATE,P_SPINB(f),XP(G)::R1(H),XB(f)
        • R(e);SBLOCK::PXB(f)=S
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • S(C);
      • Threat
        • DUALS(4)
      • Vars
        • K(c);P-FLIGHT,XB(F)::P=S
        • K(c);S_FLIGHT::PXB(f)=Q
        • B(f);OGATE,P_SPINB(f),XP(G)::R1(H),XB(f)
      • Refutation
        • R(e);P_PINP(G)
    • Try
      • P(G);CHECK,XR(e)
      • Vars
        • B(f);N_GUARD,P_SPINB(f)::R1(H),XB(f)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • P(G);CHECK
      • Refutation
        • K(c);S_FLIGHT,XR(G)
  • Actual
    • S(C);
    • Vars
      • K(c);S_FLIGHT::PXR(e)=S
      • K(c);P-FLIGHT,XB(F)::P=S
      • K(c);S_FLIGHT::PXB(f)=Q
      • B(f);OGATE,P_SPINB(f),XP(G)::R1(H),XB(f)
      • R(e);SBLOCK::PXB(f)=S
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Developed and maintained by Brian Stephenson.
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