MESON Chess Problem Database

Problem Display
PID: 4626 (8/4p3/1pQnN3/b2Pp2R/bp2kp2/4P2R/2P5/1B1K4 w - - 0 1)

Bettmann, Edgar

Bettmann, Henry Wald

2nd Prize, Mirror of American Sports, 1884

8/4p3/1pQnN3/b2Pp2R/bp2kp2/4P2R/2P5/1B1K4

#2

9 + 9

153 La Strategie 1886
5065 Chess Problem Gems by Eight Eminent American Composers 1972

SOLUTION

  • SOUND
  • Sets
    • 1...Bxc2+
      • 2.Bxc2#
    • 1...Bb3
      • 2.cxb3#
    • 1...Bb5
      • 2.c4#
    • 1...Bxc6
      • 2.c4#
    • 1...Sc4
      • 2.Qxc4#
    • 1...Sb5
      • 2.d6#
    • 1...Sf5
      • 2.Sg5#
    • 1...Sb7
      • 2.Qc4#
    • 1...Sf7
      • 2.Qc4#
    • 1...Sc8
      • 2.Qc4#
    • 1...Se8
      • 2.Qc4#
    • 1...b3
      • 2.cxb3#
      • 2.c3#
      • 2.c4#
    • 1...b5
      • 2.Sc5#
  • Tries
    • 1.Ke2?
      • 1...Bb5+
        • 2.c4#
      • 1...Bxc2
        • 2.Bxc2#
      • 1...Bxc6
        • 2.c4#
      • 1...fxe3
        • 2.Rxe3#
        • 2.R3h4#
      • 1...Bb3
        • 2.cxb3#
      • 1...Sc4
        • 2.Qxc4#
      • 1...Sb5
        • 2.d6#
      • 1...Sf5
        • 2.Sg5#
      • 1...Sb7
        • 2.Qc4#
      • 1...Sf7
        • 2.Qc4#
      • 1...Sc8
        • 2.Qc4#
      • 1...Se8
        • 2.Qc4#
      • 1...b3
        • 2.cxb3#
        • 2.c3#
        • 2.c4#
      • 1...b5
        • 2.Sc5#
      • 1...f3+!
    • 1.Qb5?
      • threat
        • 2.Qd3#
      • 1...Bxc2+
        • 2.Bxc2#
      • 1...Bxb5
        • 2.c4#
      • 1...Sc4
        • 2.Qxc4#
      • 1...Sxb5!
    • 1.Qxd6?
      • threat
        • 2.Rxe5#
        • 2.Qxe5#
      • 1...Bxc2+
        • 2.Bxc2#
      • 1...exd6!
  • Keys
    • 1.Kd2!
      • 1...Sc4+
        • 2.Qxc4#
      • 1...b3+
        • 2.c3#
      • 1...fxe3+
        • 2.Rxe3#
      • 1...Bxc2
        • 2.Bxc2#
      • 1...Bxc6
        • 2.c4#
      • 1...Bb3
        • 2.cxb3#
      • 1...Bb5
        • 2.c4#
      • 1...Sb5
        • 2.d6#
      • 1...Sf5
        • 2.Sg5#
      • 1...Sb7
        • 2.Qc4#
      • 1...Sf7
        • 2.Qc4#
      • 1...Sc8
        • 2.Qc4#
      • 1...Se8
        • 2.Qc4#
      • 1...f3
        • 2.R3h4#
      • 1...b5
        • 2.Sc5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • B(a);CHECK,OGATE,P_SPINB(a),XP(C)::B(A),XB(a)
    • B(a);::B(A)+P(C),XB(a)
    • B(a);N_PINP(C)::B(A)+P(C)
    • B(a);N_PINP(C),XQ(H)::B(A)+P(C)
    • S(h);N_GUARD::QAR2(H),XS(h)
    • S(h);OGATE::QAB(H)+P(F)
    • S(h);SBLOCK::S(I)
    • S(h);N_GUARD::QAR2(H)
    • P(g);N_GUARD::S(I)
  • Tries
    • Try
      • K(B);N_SPINP(C),S_FLIGHT
      • Vars
        • B(a);CHECK,N_GUARD::B(A)+P(C)
        • B(a);OGATE,P_SPINB(a),XP(C)::B(A),XB(a)
        • B(a);N_GUARD,XQ(H)::B(A)+P(C)
        • B(a);OGATE::B(A)+P(C),XB(a)
        • S(h);N_GUARD::QAR2(H),XS(h)
        • S(h);OGATE::QAB(H)+P(F)
        • S(h);SBLOCK::S(I)
        • S(h);N_GUARD::QAR2(H)
        • P(g);N_GUARD::S(I)
      • Refutation
        • P(d);CHECK
    • Try
      • Q(H);
      • Threat
        • QAB1(H)
      • Vars
        • B(a);CHECK,OGATE,P_SPINB(a),XP(C)::B(A),XB(a)
        • B(a);N_PINP(C),XQ(H)::B(A)+P(C)
        • S(h);N_GUARD::QAR2(H),XS(h)
      • Refutation
        • S(h);XQ(H)
    • Try
      • Q(H);XS(h)
      • Threat
        • DUALS(2)
      • Vars
        • B(a);CHECK,OGATE,P_SPINB(a),XP(C)::B(A),XB(a)
      • Refutation
        • P(i);XQ(H)
  • Actual
    • K(B);N_SPINP(C),P-FLIGHT
    • Vars
      • S(h);CHECK,N_GUARD::QAR2(H),XS(h)
      • P(b);CHECK,S_CUTB(a)::B(A)+P(C)
      • P(d);CHECK,OGATE,XP(D)::R1(E),XP(d)
      • B(a);OGATE,P_SPINB(a),XP(C)::B(A),XB(a)
      • B(a);N_GUARD,XQ(H)::B(A)+P(C)
      • B(a);OGATE::B(A)+P(C),XB(a)
      • B(a);N_GUARD::B(A)+P(C)
      • S(h);OGATE::QAB(H)+P(F)
      • S(h);SBLOCK::S(I)
      • S(h);N_GUARD::QAR2(H)
      • P(d);OGATEB,SBLOCK::R(E)
      • P(g);N_GUARD::S(I)
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